With a clue like "Meta", Scream is a probability. But if this is the same house as the one that'll divide the community, Scream ain't it. That would be a true fan favorite.
Meta could entail something Universal Parks related, maybe a house based on a movie franchise seen at Universal Studios before? We've joked about Shrek and Jaws already, but Revenge of the Mummy, Jurassic Park, Hitchcock, Psycho have also been legacied rides at Studios. They also wouldn't really fit the "fanbase divided" quota though. Maybe we're finally getting a Potter attraction? That could maybe do it.