sky black swordman@ Maybe that he gain a new skill and path to take? I mean if he gain DD as well he can make new move and strategy. The problem is ..he will learn only steal or the DD ability that divides the enemy power? Then again from what n0m@n say seem to me that the author will make Ise master the full DD. Wonder if a new gauntlet will born on his right hand . Or maybe DD will become part of bg?(maybe sub -specie like someone say some time ago).
CNine@ Are you forgot that she is no more? even her soul no longer exists. Also we don't need her back,ise just need Rias and the other help to solve this, like the girls already show us . So let yuma stay die for good.
Clue@ And this would be fatal form him.
Both Zenovia and Ross(even her..never thought to heard something like this from her) point out that Rias and Akeno oppai are the one that Ise like most. they say that he would be back because he like Rias and Akeno oppai too much(in vol 12).