User blog comment:Mnzombie/Issei's Peerage/@comment-13032946-20150122190916

These are plausible

Queen - Tiamat/Kiryuu (if it's true) Bishop - Ravel Phenex, Asia argento Knight - Xenovia, irina (if she ends up falling) or Jeanne Rook - Issabella (rizer's rook), Tsubasa Yura Pawn - kuno, Le Fay Pendragon, Kiyome Abe, the rest are characters we haven't met yet