Tiffany would be the most interesting to bring back due to her rivalry with Day, but IF SHE RETURNED AND GOT DAY OUT BEFORE JURY I'D EXPLODE.
Jozea is next in line in entertainment factors.. but again he's targeting Day. Yes he's most likely to go home immediately after going in but once Frank finds out he'll put him under his wing where Nicorey & Bridgette are right now and Day will somehow some way go home.
Bronte is a good choice for Day fans but I just don't care for her? I feel like nothing changes if she returns. There's no fun in her returning.
Victor is going for Paulie which means yay Day is safe. But he's a dud.
Glenn.. I feel like he can be swayed either way. Him coming into the house after 5 weeks would be hilarious so.
I want Tiffany to return. I don't think she'll target Day if she got HOH honestly unless Frank really pushes it. She would probably put up Paulie/Michelle at that point for revenge.
I want Victor or Bronte or even Glenn return. Jozea is a mess and he'll be a mess if he goes back in and Tiffany just came back in and she'll be in a better position if she comes back since everyone is weary of Da'Vonne.
