User blog comment:B214/High School DxD Born Final Episode Review/@comment-24409634-20150623194420/@comment-26209278-20150623215524

Well, Rizevim isn't introduced until volume 16 (i think). So they would need to cut out a lot in order to get to that in season 4

But seriously, while i agree this season wasn't the best, it was still pretty popular. I still have faith that if there is a new season, that they'll learn from mistakes and go back to the source.