rickiminato @ Wait . I thought this is something that fit better the Speculation & Theories topic.
Uberchu @ You do realize that Ise already fit the High school dxd title right? He had a body made from Dxd flesh even ophis say that his body it's almost the same a Dxd or something along this line in vol 12(because her power).
XFire@ Or that he use Dd again Rias or akeno oppai (or both).
But i agree with what you say.