I would assume Emma would be one of the ones back. Apparently Emma and Regina get into a heated argument before Emma’s fight with Gideon. I have this feeling that the reason they’ve been consistently showing Regina swordfight this season is so that in the end she can be the one that kills Gideon and sacrifices her life for her family.
Plus for OQ fans it could mean a reunion for Regina and Robin in the afterlife.
If the ending of the finale is Hook and Emma driving off into the sunset with the siren that kind of says to me that they’ll be around next season. TBH whatever happens I don’t expect it to go on to another season past 7.
To me with Regina AND Rumple dying. Which I’m shocked both of them could die, you may as well end the show.