Legacy pretty much nailed it, MSS is focused West Coast Haunt-Wise, so the panel will revolve more around Hollywood. Now I'll be impressed if they do talk about any of Orlando's originals, but most likely they'll talk about whatever shared properties they wanna' talk about. (Stranger Things, Trick 'r Treat, probably a announcement of Poltergeist or Halloween to try drumming up hype since WB will have held their panel earlier in the day.)