Board Thread:News and Announcements/@comment-25401994-20150928112507/@comment-26283357-20150929102812

Actually that is not true, there was still enough material to get around 8 to 9 more episodes filled with the material left before the manga went on a hiatus. There wasn't a lack of material as they still had more than enough.

The anime for HotD only covers up till ch 17, before it went on a hiatus there were 11 more chapters already published for it.