Board Thread:Questions and Answers/@comment-68.206.121.74-20150415000241/@comment-6049744-20150415001825

Yup. As of november last year, 2016 is the target year for season 2. http://www.crunchyroll.com/anime-news/2014/11/21-1/2016-attack-on-titan-season-2-plans-confirmed