I will say that a lot of the guesses over the whole thread have been very out there, and honestly, I don't think it's very hard to speculate this year's lineup even this early.
After combing through all the random guesses this thread has thrown out and doing some research on this year's horror movie slate for that refresher post, I do think we can come up with a decent list of IPs that are reasonably likely to make it to the event.
1. Horrors of Blumhouse 4 (Exorcist, M3GAN, Insidious) (M3GAN would struggle to hold it's own as a full house, and both The Exorcist and Insidious have been done before. Giving each a smaller spot in the event would work in all three's favor. All three are incredibly marketable as well.)
2. Chucky
3. Saw (Easy IP to get rights for, very marketable, new film, has been done in previous years many times but has been a half-decade since the last house.)
4. Phantom of the Opera VS House
5. Wildcard (Non-music, non-White Whale)
And then most likely 5 originals. Based on previous years, it's honestly not out of the question that that 5th IP spot goes to a 6th original somehow anyways. Most of these are either in-house Universal or rather easy to get the rights to like Saw. It seems that Universal is kind of set up with a lot of easy pickings this year, even if major avenues from previous years (Netflix, WB, HBO, Fox) have closed up on them.
If I had to guess on that wildcard IP, I'd say Creepshow has had a lot of smoke for a good deal of time, whether we see it as a zone or house I feel like it's gotta be on it's way eventually especially after appearing in Hollywood. (This is from someone who has zero attachment to that IP whatsoever, honestly barely even know what it is). I'd also say the HBO stuff is very dependent on good dealings between A&D and HBO. I think Joe is right that despite being really great house ideas that could and honestly should be fully viable this year, HBO's spotty track record could lead to Universal just wanting to wash their hands of the whole deal. If they hadn't dropped the ball so late in the game last year, I'd say EDR and maybe even Last of Us would have really high chances. As it stands, maybe they can fill that 5th spot, but I'm not holding my breath.
Dawn FM has always felt wishlisty to me. Dawn FM tracks being included a few weeks into last year's house felt like the death knell to that idea in my head. No other music artists are currently big enough or have the horror influence to hold it the way Billie or Abel could.
I also wouldn't sleep on Renfield? It being a Universal production specifically definitely has my eyes on it. Could definitely be passed up on and it wouldn't be the most likely property in any year, but I also wouldn't be shocked to get a random July announcement for a house yknow? Call it a feeling in my gut.