User blog comment:Jopjopjop/Volume 20 Spoilers/@comment-24685938-20150807114959/@comment-172.56.26.252-20150807194543

It may be his last power up for the highschool dxd series but I like to think that Ichiei Ishibumi will continue the series in a spin off maybe or sequel series and if that happens we might further development of issei's abilities