User blog comment:B214/High School DxD BorN episode 1 review/@comment-24.64.83.13-20150411015625/@comment-26209278-20150412220952

We don't even know when the LN will finish. Nearly at its 20th episode and we're no where near done (I think, only had half of 18 and none of 19). Ishibumi releases 2/3 novels a year (going by his past releases), and one season could be 2/3 novels. The anime couldn't potentially catch up unless Ishibumi slows down or finishes.