I'm not suspecting heavy repeat IPs from this past year. FNAF 3 isn't coming out next year (plus I'm sure Scott Cawthon has heavy creative demands for a FNAF 2 house), and they probably want to wait a year to do Terrifier 4 given the film comes out the final weekend of the 2026 event. I maybe see Fallout being the likeliest to return despite a more muted reception in Orlando becuase Hollywood was much better received and I'm sure Universal wants to continue their partnership with Amazon for years to come, but The Last of Us hasn't even returned yet.
That being said, some early guesses....
IPs
Stranger Things 5: This almost feels like a given. It's probably the very last time we'll see the series at the event, so I'm sure they'll go all out with a megahouse in SS25.
The Black Phone: Given the sequel's success and The Grabber's continuing endurance at the event, it probably makes sense to give the films a standalone house for once.
Sinners: I can't imagine the creative team isn't trying to chase the largest horror film in almost a decade. This could be The Darkest Deal with vampires and large setpieces. The Hoodoo elements within the story may have to be toned down though if it were to come.
Hellraiser - It's of those IPs that I'll believe when I see like Conjuring/Scream/Silence of the Lambs, but there seems to be early smoke to this rumor.
Oz Perkins Anthology - An A24 mashup house continues to be an idea fans have wanted for years, but I wouldn't be surprised if Neon beat them to the punch. Oz Perkins is going to have his fourth Neon horror film release next year, and given his father's legacy to the Universal brand, it would fit right into the event.
Originals
Anniversary House: Like Stranger Things, this is another practical guarantee. I'm sure we'll see Scarecrow, Wicked Growth, a Slaughter Sinema concept or two, and some older concepts from the 00s.
Oddfellow vs. Jack: If the hints for this don't tie into the anniversary house, a standalone house makes sense.
Standalone Sequel House: If Scarecrow isn't in the anniversary house, it makes the most sense for a standalone sequel.
Two new originals