User blog comment:Collbrande-Ex-Caliburn/Hyoudou Issei's Peerage composition hopes/dreams/hypothesis/@comment-31137559-20170124200851/@comment-9595671-20170125035957

That's possible too, atleast for the Azazel Cup she can join without actually becoming a Devil.

Who knows? It's even possible that Ajuka might use the tournament as a means to expan on the Evil Piece system so others can join a peerage without having to become a Devil, or if they lost their master and can't just join another peerage like Kuroka.

I mean while the system has to still be running in Heaven, the Brave Saints' situation as a whole after Trihexa's attack on Heaven is still up in the air, and there were plans to allow Brave Saints and Evil Pieces to be traded to the opposing system.

Guess we'll have to wait and see.