User blog comment:B214/Talk About What You Want! 2/@comment-4547267-20140528021741/@comment-3965848-20140528080917

Rias-being together with Issei all the time

Akeno-having sex with Issei (maybe in a bondage theme)

Xenovia-training the kids she has with Issei

Koneko-having a fully matured body and having kids with Issei

Asia-being together with and having his babies

Ravel-being the closes out of his harem

Irina-about never leaving to go abroad and always together with Issei

Rosswiesse-being in a romantic relationship with Issei

Gasper-being brave and nolonger a shut in

Kiba-being the ultimate knight along side his friend Issei, the ultimate pawn

This is just my guess of what they would dream about.