Okay so along with the names of the supposed returnees, there's also information out there as to how most of them do.
Based on what I've read and what I remember, it goes something like this (favorites listed only):
Andrea - Jury
Brenda - Jury
Brandon - Unknown. Either early merge boot or right before merge?
Cochran - F3
Corinne - Early boot
Dawn - F3
Erik - Jury? Some say he made it to F4 but had to leave the game for a reason other than being voted out.
Francesca - Early boot. Believe it or not, I've read she's possibly the first boot again
Malcolm - Jury
Phillip - Jury
So most of the Favs make the merge. The F3 is supposedly Dawn/Cochran/female fan
Same guy who said Skupin wins (and got it wrong) says Cochran wins. So yeah.