User blog comment:Xhatefate/DxD Updates~/@comment-27083298-20161217104236/@comment-10330822-20161220105043

Well, the difference between pure blood and reincarnated when it comes to the harem in this case is kind of irrelevant when you think about it. All children of Ise will be mixed-blood regardless of whether the devil mothers are pure blood or not. Rias doesn't behave like a normal high-class, she's classy, but she's not snobby like Ravel was. I could see Ise getting a "taste" of every kind of woman in this series. Like he's going to naturally gather the "types" that Riser had in his peerage.

Ultimately, I don't think it'd matter if Elmenhilde was a devil or not, it wouldn't change her personality after all, which I feel is the most important factor of how she fits into the peerage. I think its just a question of personal preference.

Honestly, I didn't think he'd be becoming a High-Class Devil and forming his peerage this quickly. Rose joining his peerage was kind of a bombshell, but I feel most anyone else is going to be surprising given the situation. So, we can't really speak whether Elmenhilde would be good or not just yet. We also have no solid proof as to who the most likely suspects are for his other pieces.