I think pretty much everything besides Blumhouse and Uber Fan are flying under the radar because we're so confident in them and we pretty much know what to expect,
Jigsaw: traps, Billy, probably pig men, Leigh Whannel telling the story of how he was kicked out of the Saw maze
Insidious ch. 4: Bit more mysterious but I assume we'll see a house, a person possessed by a demon, said physical demon, and a trip to a place filled with fog, possibly Darth Maul
Blumhouse is so intriguing because besides AHS last year, Hollywood has never really done a maze like that. Totally unrelated IP's brought together under one title. It's even more extreme than AHS. And we still don't know for sure what will be in there because truly I think 4-5 movies is the max (Get Out, Sinister, Ouija, The Purge, Paranormal Activity, Tooth Fairy (Totally joking. Just find it funny that that movie is produced by Blumhouse...)) anymore than that would probably confuse people even more.
And Uber Fan is just causing chaos and I bet John is loving seeing us scramble and not feeding us anything about it. And for the first time, it seems like people have stopped trusting those with sources (atleast with this maze. I still trust you for everything else. This one is complicated) because of the rumors that John is keeping it super under wraps and telling people false properties to sort out the leakers. This year is definitely throwing me for a loop for first time since I started speculation and it's crazy!