user24: We had a pretty successful meta post last season with the intent of getting as many series tagged as possible: Creating tags for Fall 2014 series. More than half the series there ended up being tagged, which is ultimately a good thing and reduces the need for workarounds like retag. So I figured we might as well continue doing it as long as it's working, and Winter season is about to start, so this is the right time to post this. 
This season has more sequels and fewer new series, so we're starting off with more series tagged, but we should still aim to get as many of the remaining ones tagged as possible.
What series are airing in Winter 2015, and which have tags?

user24: I'm using Anichart with English titles and ordering the series by air date, with carry-overs listed first (alphabetically), and ignoring short anime (but at this point we're still not 100% sure which ones will be shorts). This answer is CW, so feel free to modify it as needed.

Akatsuki no Yona akatsuki-no-yona
CROSS ANGE: Rondo of Angel and Dragon cross-ange
Garo: Honoo no Kokuin garo
Log Horizon 2 log-horizon
Magic Kaito 1412 kaito-kid
Parasyte -the maxim- parasyte
Ronia the Robber's Daughter ronia
Shirobako shirobako
The Seven Deadly Sins nanatsu-no-taizai
World Trigger world-trigger
Your lie in April shigatsu-wa-kimi-no-uso
Yowamushi Pedal: Grande Road yowamushi-pedal
Tantei Opera Milky Holmes TD no tag (use tantei-opera-milky-holmes)



Absolute Duo absolute-duo
Yuri Kuma Arashi yuri-kuma-arashi
Kamisama Kiss◎ kamisama-kiss
Binan Koukou Chikyuu Bouei-bu Love! boueibu
Kantai Collection: Kan Colle kantai-collection
The Testament of Sister New Devil no tag (use shinmai-maou-no-testament)
Tokyo Ghoul √A tokyo-ghoul
Saekano: How to Raise a Boring Girlfriend saekano
Koufuku Graffiti koufuku-graffiti
Juuou Mujin no Fafnir no tag
Soukyuu no Fafner: Dead Aggressor - Exodus no tag (use soukyuu-no-fafner)
THE iDOLM@STER: Cinderella Girls the-idolmaster
JoJo's Bizarre Adventure Part 3: Stardust Crusaders 2 jojo-no-kimyouna-bouken
Assassination Classroom assassination-classroom
Death Parade death-billiards death-parade
Shounen Hollywood: Holly Stage for 50 no tag
Durarara!!x2 Shou durarara
Aldnoah.Zero 2 aldnoah-zero
Dog Days'' dog-days
Rolling☆Girls no tag
Kuroko's Basketball 3 kuroko-no-basket
Yoru no Yatterman no tag
Junketsu no Maria junketsu-no-maria
Seiken Tsukai no World Break world-break
Sengoku Musou no tag
Isuca no tag
Go! Princess Precure pretty-cure

We currently have 31/40 tags.

24: <p>We had a pretty successful meta post last season with the intent of getting as many series tagged as possible: <a href="https://anime.meta.stackexchange.com/questions/1126/creating-tags-for-fall-2014-series">Creating tags for Fall 2014 series</a>. More than half the series there ended up being tagged, which is ultimately a good thing and reduces the need for workarounds like <a href="https://anime.stackexchange.com/questions/tagged/retag" class="post-tag" title="show questions tagged &#39;retag&#39;" rel="tag">retag</a>. So I figured we might as well continue doing it as long as it's working, and Winter season is about to start, so this is the right time to post this. </p>

<p>This season has more sequels and fewer new series, so we're starting off with more series tagged, but we should still aim to get as many of the remaining ones tagged as possible.</p>

<p><strong>What series are airing in Winter 2015, and which have tags?</strong></p>
 24: <p>I'm using <a href="http://anichart.net/winter" rel="nofollow noreferrer">Anichart</a> with English titles and ordering the series by air date, with carry-overs listed first (alphabetically), and ignoring short anime (but at this point we're still not 100% sure which ones will be shorts). This answer is CW, so feel free to modify it as needed.</p>

<ul>
<li><strong>Akatsuki no Yona</strong> <a href="https://anime.stackexchange.com/questions/tagged/akatsuki-no-yona" class="post-tag" title="show questions tagged &#39;akatsuki-no-yona&#39;" rel="tag">akatsuki-no-yona</a></li>
<li><strong>CROSS ANGE: Rondo of Angel and Dragon</strong> <a href="https://anime.stackexchange.com/questions/tagged/cross-ange" class="post-tag" title="show questions tagged &#39;cross-ange&#39;" rel="tag">cross-ange</a></li>
<li><strong>Garo: Honoo no Kokuin</strong> <a href="https://anime.stackexchange.com/questions/tagged/garo" class="post-tag" title="show questions tagged &#39;garo&#39;" rel="tag">garo</a></li>
<li><strong>Log Horizon 2</strong> <a href="https://anime.stackexchange.com/questions/tagged/log-horizon" class="post-tag" title="show questions tagged &#39;log-horizon&#39;" rel="tag">log-horizon</a></li>
<li><strong>Magic Kaito 1412</strong> <a href="https://anime.stackexchange.com/questions/tagged/kaito-kid" class="post-tag" title="show questions tagged &#39;kaito-kid&#39;" rel="tag">kaito-kid</a></li>
<li><strong>Parasyte -the maxim-</strong> <a href="https://anime.stackexchange.com/questions/tagged/parasyte" class="post-tag" title="show questions tagged &#39;parasyte&#39;" rel="tag">parasyte</a></li>
<li><strong>Ronia the Robber's Daughter</strong>  <a href="https://anime.stackexchange.com/questions/tagged/ronia" class="post-tag" title="show questions tagged &#39;ronia&#39;" rel="tag">ronia</a></li>
<li><strong>Shirobako</strong> <a href="https://anime.stackexchange.com/questions/tagged/shirobako" class="post-tag" title="show questions tagged &#39;shirobako&#39;" rel="tag">shirobako</a></li>
<li><strong>The Seven Deadly Sins</strong> <a href="https://anime.stackexchange.com/questions/tagged/nanatsu-no-taizai" class="post-tag" title="show questions tagged &#39;nanatsu-no-taizai&#39;" rel="tag">nanatsu-no-taizai</a></li>
<li><strong>World Trigger</strong> <a href="https://anime.stackexchange.com/questions/tagged/world-trigger" class="post-tag" title="show questions tagged &#39;world-trigger&#39;" rel="tag">world-trigger</a></li>
<li><strong>Your lie in April</strong> <a href="https://anime.stackexchange.com/questions/tagged/shigatsu-wa-kimi-no-uso" class="post-tag" title="show questions tagged &#39;shigatsu-wa-kimi-no-uso&#39;" rel="tag">shigatsu-wa-kimi-no-uso</a></li>
<li><strong>Yowamushi Pedal: Grande Road</strong> <a href="https://anime.stackexchange.com/questions/tagged/yowamushi-pedal" class="post-tag" title="show questions tagged &#39;yowamushi-pedal&#39;" rel="tag">yowamushi-pedal</a></li>
<li><strong>Tantei Opera Milky Holmes TD</strong> <em>no tag</em> (use <code>tantei-opera-milky-holmes</code>)</li>
</ul>

<hr>

<ul>
<li><strong>Absolute Duo</strong> <a href="https://anime.stackexchange.com/questions/tagged/absolute-duo" class="post-tag" title="show questions tagged &#39;absolute-duo&#39;" rel="tag">absolute-duo</a></li>
<li><strong>Yuri Kuma Arashi</strong> <a href="https://anime.stackexchange.com/questions/tagged/yuri-kuma-arashi" class="post-tag" title="show questions tagged &#39;yuri-kuma-arashi&#39;" rel="tag">yuri-kuma-arashi</a></li>
<li><strong>Kamisama Kiss◎</strong> <a href="https://anime.stackexchange.com/questions/tagged/kamisama-kiss" class="post-tag" title="show questions tagged &#39;kamisama-kiss&#39;" rel="tag">kamisama-kiss</a></li>
<li><strong>Binan Koukou Chikyuu Bouei-bu Love!</strong> <a href="https://anime.stackexchange.com/questions/tagged/boueibu" class="post-tag" title="show questions tagged &#39;boueibu&#39;" rel="tag">boueibu</a></li>
<li><strong>Kantai Collection: Kan Colle</strong> <a href="https://anime.stackexchange.com/questions/tagged/kantai-collection" class="post-tag" title="show questions tagged &#39;kantai-collection&#39;" rel="tag">kantai-collection</a></li>
<li><strong>The Testament of Sister New Devil</strong> <em>no tag</em> (use <code>shinmai-maou-no-testament</code>)</li>
<li><strong>Tokyo Ghoul √A</strong> <a href="https://anime.stackexchange.com/questions/tagged/tokyo-ghoul" class="post-tag" title="show questions tagged &#39;tokyo-ghoul&#39;" rel="tag">tokyo-ghoul</a></li>
<li><strong>Saekano: How to Raise a Boring Girlfriend</strong> <a href="https://anime.stackexchange.com/questions/tagged/saekano" class="post-tag" title="show questions tagged &#39;saekano&#39;" rel="tag">saekano</a></li>
<li><strong>Koufuku Graffiti</strong> <a href="https://anime.stackexchange.com/questions/tagged/koufuku-graffiti" class="post-tag" title="show questions tagged &#39;koufuku-graffiti&#39;" rel="tag">koufuku-graffiti</a></li>
<li><strong>Juuou Mujin no Fafnir</strong> <em>no tag</em></li>
<li><strong>Soukyuu no Fafner: Dead Aggressor - Exodus</strong> <em>no tag</em> (use <code>soukyuu-no-fafner</code>)</li>
<li><strong>THE iDOLM@STER: Cinderella Girls</strong> <a href="https://anime.stackexchange.com/questions/tagged/the-idolmaster" class="post-tag" title="show questions tagged &#39;the-idolmaster&#39;" rel="tag">the-idolmaster</a></li>
<li><strong>JoJo's Bizarre Adventure Part 3: Stardust Crusaders 2</strong> <a href="https://anime.stackexchange.com/questions/tagged/jojo-no-kimyouna-bouken" class="post-tag" title="show questions tagged &#39;jojo-no-kimyouna-bouken&#39;" rel="tag">jojo-no-kimyouna-bouken</a></li>
<li><strong>Assassination Classroom</strong> <a href="https://anime.stackexchange.com/questions/tagged/assassination-classroom" class="post-tag" title="show questions tagged &#39;assassination-classroom&#39;" rel="tag">assassination-classroom</a></li>
<li><strong>Death Parade</strong> <a href="https://anime.stackexchange.com/questions/tagged/death-billiards" class="post-tag" title="show questions tagged &#39;death-billiards&#39;" rel="tag">death-billiards</a> <a href="https://anime.stackexchange.com/questions/tagged/death-parade" class="post-tag" title="show questions tagged &#39;death-parade&#39;" rel="tag">death-parade</a></li>
<li><strong>Shounen Hollywood: Holly Stage for 50</strong> <em>no tag</em></li>
<li><strong>Durarara!!x2 Shou</strong> <a href="https://anime.stackexchange.com/questions/tagged/durarara" class="post-tag" title="show questions tagged &#39;durarara&#39;" rel="tag">durarara</a></li>
<li><strong>Aldnoah.Zero 2</strong> <a href="https://anime.stackexchange.com/questions/tagged/aldnoah-zero" class="post-tag" title="show questions tagged &#39;aldnoah-zero&#39;" rel="tag">aldnoah-zero</a></li>
<li><strong>Dog Days''</strong> <a href="https://anime.stackexchange.com/questions/tagged/dog-days" class="post-tag" title="show questions tagged &#39;dog-days&#39;" rel="tag">dog-days</a></li>
<li><strong>Rolling☆Girls</strong> <em>no tag</em></li>
<li><strong>Kuroko's Basketball 3</strong> <a href="https://anime.stackexchange.com/questions/tagged/kuroko-no-basket" class="post-tag" title="show questions tagged &#39;kuroko-no-basket&#39;" rel="tag">kuroko-no-basket</a></li>
<li><strong>Yoru no Yatterman</strong> <em>no tag</em></li>
<li><strong>Junketsu no Maria</strong> <a href="https://anime.stackexchange.com/questions/tagged/junketsu-no-maria" class="post-tag" title="show questions tagged &#39;junketsu-no-maria&#39;" rel="tag">junketsu-no-maria</a></li>
<li><strong>Seiken Tsukai no World Break</strong> <a href="https://anime.stackexchange.com/questions/tagged/world-break" class="post-tag" title="show questions tagged &#39;world-break&#39;" rel="tag">world-break</a></li>
<li><strong>Sengoku Musou</strong> <em>no tag</em></li>
<li><strong>Isuca</strong> <em>no tag</em></li>
<li><strong>Go! Princess Precure</strong> <a href="https://anime.stackexchange.com/questions/tagged/pretty-cure" class="post-tag" title="show questions tagged &#39;pretty-cure&#39;" rel="tag">pretty-cure</a></li>
</ul>

<p>We currently have <strong>31/40</strong> tags.</p>
