The premiere date for the Attack on Titan (jap. Shingeki no Kyojin) TV anime season 2 is set to February 2017. For more details see the official webpage: http://shingeki.tv/season2/.
Attack on Titan is an on-going manga from 2009 by Hajime Isayama. The story revolves around Eren Yaeger and his childhood friends Mikasa Ackerman and Armin Arlert in a fantasy-historical setting. The story tells of how they together with the rest of the military tries to defeat giant monsters known as Titans which has nearly wiped out all of humanity. The manga has been adapted into a TV anime of 25 episodes in 2013.