User blog comment:Piyush Banerjee/Shin DxD 2 discussion/@comment-24552694-20181228185324/@comment-24552694-20190116004632

Griselda is as you say most likely in her 20's, early thirtes at the latest, as it has been established that the concept of the exorcist program has only been aroundfor 50 years at most given strada founding it and his age. though given the reincarnation  system age does not really matter as long as they are old enough.

I think Griselda x Issei would be good in a lot of ways, as i am imagining an older angel xenovia  mixed with a bit of grayfia's scariness and i can imagine her scolding xenovia for trying to do something pervert with issei in the angel baby making room, making her leave, then doing the same thing with issei

Overall, my personal thoughts are theat since it has been hinted quite a few more girls are too come my personal excpetations are Kiyome ( mentionened once more in Shin volume 1 so not forgotten about, Pawn piece maybe?), Griselda, Lint Sellzan,  Tsubasa yura, Valerie Tepes,  Gabriel, and a far off possability Jeanne or Walburga (I think some former enemy is a harem  archetype but that may be fulfilled by Kuroka). though in general  Tsuibasa and evryone after is proabely wishful thinking

Given that we are reading it in english and most can't follow the authors twitter feed as such we are a bit in the dark. I think the reason why he did a full harem call back to the wedding dream  from volume 2  is so that he could basically do 'Okay, all of these 15 girls are marrying issei, more maybe coming.'

Though i do hope we get quite a few more girls, as there are plenty of time to move about  romantic devlopment. Though i think we all should keep an open muind as the author once mention ophis was intened to die after saving issei and instaed she became a mascot so until  the end things are still up in the air for a few girls.

Also don't worry about the late reply,  it was the holidays though I am sorry if i went a bit off or repated myself, Happy 2019 :)