On his Twitter, Mike Aiello reposted some stuff from HHN24 in which he sang the praises of Halloween and he's gushing about the new one. (Me as well, insanely great trailer)
My guess is our slashers are Mike Myers and Chucky. And maybe the bad Babymask slasher from HDD. And maybe that lil' Slashy Sam.
Our supernatural houses are likely Poltergeist, TrT and, in a more Sci-Fi way, Stranger Things.
I like the Killer Klowns idea for the remaining scare zone, but I kinda want the foam to be ectoplasm and the zone to belong to the Ghostbusters, but that's just me. I'd also like a Biff-Takes-Over Hill Valley house/zone combo, but it may mirror our current political situation a bit too closely.