Missing notifications in lock screen after update to Lollipop
Sorry to tell you, there is no way to get them back to the status bar. You can only have them shown as you mentioned in your question. On Google I found a lot of discussions about this. However, I couldn't find a solution anywhere on the internet. Hope Google will give an option for this in later updates for android. I also miss it. And the "contents hidden" is useless. Why couldn't they make that option restore the icons to the statusbar...

Hope my answer helps!