I don’t want to bore with another list, so I’ll try to speculate loosely. Generally speaking, the event has followed a formula with three of the IP mazes each year for the past few years. That is, you have the blockbuster property, the cult hit property, and the classic property. For example, that’s AHS, Krampus, and The Exorcist in 2016, AHS Roanoke, Ash vs Evil Dead, and The Shining in 2017, and Stranger Things, Trick ‘r Treat, and Poltergeist in 2018. If we apply that formula to next year, it’s safe to say that Stranger Things S2 is our blockbuster and Killer Klowns is our cult hit. That leaves us with a classic property to figure out.
Personally, I’m looking to The Thing. Sure, the puppets would be costly, but it’s been done before. And if it made it to the too-good-to-be-true leaked lineup this year, then that means its chances of coming are arguably higher than any other property to be considered. The only other properties I see filling that slot are Hellraiser, Child’s Play, or Scream. They’d all be difficult to pull off because of rights issues but I think they’d make good replacements in the eyes of both hardcore fans and the general public.