User blog comment:B214/Season 3 confirmed!!!!!!/@comment-180.191.180.145-20140622080128/@comment-4829046-20140622081933

If you talk in terms of pure content, then for it to be ideal they need to spread out 3 volumes in a 2-cour(24-ep) season. At least that's how I think considering the stuff they changed in the anime. DxD is one of the longer LNs after all which is why I dislike the usual approach they are doing. The anime could have been done so much better, though it would have taken more time and reduced sales and views somewhat so makes sense they wouldn't take that approach. Depressing but hey, just make sure you don't forget the original story in the LNs. :)