Well when i was watching renunion for survivor caramoan Jeff said the name for season 27 would be.......................... SURVIVOR BLOOD VS WATER So im guesing it might be family vs family the reason i think it is is because i think blood refers to past players, as the are the "Blood" of survivor, while water is the relatives because they are fresh to the game also cast that are kinda confrimed  Rob C. , Laura, Monica, Rupert, Kat, Gervase, Tyson, R.C., Tina and Aras thats all :D