Things which may save the show:
-- a new presenter instead of Davina, somebody controversial like Chris Evans
-- a new way of producing the show, maybe have a commentator who narrates it like a proper story along with swaying music for romantic bits and screeching violins for when things become tense and a fight is about to break out
-- choose housemates who are a volatile bunch
-- completely go to town on them when they're in there and show every single embarrassing moment, have the cameras be even more intrusive going right up their nostrils even
-- evict them in "nasty" ways like into a pool of water or something
Just a few ideas anyway.