User blog comment:Mnzombie/Issei's Peerage/@comment-25508310-20141006200526

We're pretty sure Ravel will be in his future peerage, I think Asia will take the place of his second wife and since he'd want her to stay safe, he'll leave her under Rias. I can see Kuno joining his peerage when she gets older. If Le Fay isn't actually in Vali's Peerage (meaning she used one of his pieces) I can see her joining Issei's. I would love to see Tiamat join Issei's harem since she is the only female dragon queen and lives as she wants, but since she had a spat with Ddraig at some point I doubt it (unless she was in love with Ddraig and views Issei as Ddraig since they are one in the same at this point) I would like to see some of his past enemies join too, but since everyone he's fought has been essentially decimated I don't see that either. Ophis can't be in his harem due to politics and since she is essentially a god.

We'll probably see some new girls who are side characters soon like Abe the monster tamer and they'll end up joining his peerage.

My bet:

Ravel: Bishop

Kuno: Bishop

Thats all for right now though.