an indefinite hold. At Anime Expo 2012, Funimation announced that they had acquired the licensing rights to Great Guardians. Funimation released the DVD box-set of Great Guardians on December 31, 2013. The English dub for the third season was once again produced by New Generation Pictures whom not only recorded the original voice actors in California, but also managed to get several voice actors from Dragon Destiny to record in New York at DuArt Film and Video. On January 3, 2014, Madman Entertainment had release the series on Blu-ray on March 19, 2014. A fourth season, called , was announced. Animated by TNK and directed by Koichi Ohata, the series aired twelve episodes on AT-X between March 26 and June 11, 2010, with subsequent broadcasts on Chiba TV, TV Kanagawa, TV Saitama, Tokyo MX, TV Aichi, and Sun Television. The series introduces two new schools, Nanban High School and Ryoshu Academy, and introduces Kentei, the Japanese counterpart of Emperor Xian, as an antagonist. Six DVD and Blu-ray volumes were released by Media Factory between June 25 and November 25, 2010. The DVD/BDs contains an original video animation called . At Anime Expo 2012, Funimation announced that they had also acquired the licensing rights to Xtreme Xecutor alongside Great Guardians. Funimation released the DVD box-set of Xtreme Xecutor on March 11, 2014 in North America. As with the third season, the English dub was produced by both New Generation Pictures and DuArt Film and Video in California and New York, respectively. An original video animation, called was announced by Media Factory, and a promotional video was posted on their YouTube channel. The OVA was released in Japanese theaters on November 12, 2011. It was later released on DVD and Blu-ray on February 22, 2012 by Media Factory. Funimation released the DVD box-set of Great Guardians on December 31, 2013. Funimation included the OVA as part of their Xtreme Xecutor DVD Box Set in North America. A 3-episode OVA titled Ikki Tousen: Western Wolves was released between January 3, 2019 to February 27, 2019. The anime's director is Takashi Watanabe, while Masaya Honda returns as series composition. An anime television series adaptation of Shin Ikki Tousen was announced on July 2, 2021. It is produced by Arms and directed by Rion Kujo, with scripts written by Masaya Honda, character designs handled by Rin-Sin and Tsutomu Miyazawa, and music composed by Yasuharu Takanashi.