User blog comment:B214/High School DxD New Episode 2 discussion/@comment-115.133.205.90-20130717055154/@comment-16075832-20130717160556

I wonder how many sales a light novel/manga series has to do to get a long running anime these days. Maybe it needs to be overwhelmingly successful. I really wish there was a way to know what it took.

If they continue using 5 episodes per volume like in season 1, then they have enough material to cover 60 episodes plus many more for the various side stories. But if that's the case, they'll probably ctach up to the light novels pretty fast...lol. I guess as long as they don't cancel the anime series, the 12 episodes might be a good idea.