Dropping this here, ultimately it kind of amounts to nothing at this point, but thought worth mentioning:
The Transworld Halloween Attraction Show just took place this past weekend, and among the vendors there was Michael Burnett, who now runs FrightNight Studios but was the former head of makeup for years at Universal and designed the original werewolves used in the AWiL house (he also mentioned they originally wanted to make them actors in suits, but he convinced them to go with puppets). Interestingly, it seems as though he designed and built the OG puppets (and Xenomorphs the next year), but they have done the reskinning internally ever since (I can only assume one of them became Croc-o-lion, one became the Corwardly Lion, and maybe one became Mama Bear, while the Xenomorph bases may have been reworked into the Demogorgons). He opened up questions at his booth, and someone brought up the Chucky house and he just gave a very knowing glance to his wife and said "Yeah, I'm real interested to see how they pull that off this year". Could obviously mean anything from "Good luck to them, I know nothing" to "NDAs are a powerful thing" but still.
Worth noting finally, he did the sculpt for the most commonly used Chucky mask/iteration we've seen and mentioned he was never particularly thrilled with how the proportions came out. He also possesses molds for the original Chucky and Tiffany. Ultimately this could be a big nothing burger, but was awesome to get to talk to him, and I obviously wasn't going to push him or ask him questions that could get him in trouble regarding any work he was doing for this year.