Board Thread:News and Announcements/@comment-129.143.71.38-20140131110003/@comment-4664248-20140517123050

While I could have told you all that myself, let me correct a few facts.

A more likely secnario of why the mang isn't coming out is Daisuke Sato, the writer, not Shouji Sato. While it is true that Shouji is working on Triage X, he has stated if Daisuke ever got back to working on HOTD he would try to stop everything to work on it. Also neither of them have anything to do with the anime.

Other than that you were correct, since Triage is his main series right now and his publisher is demanding a lot of it, it could be a while before we see another HOTD chapter.