Was sort of hoping for Scooby, but I like what others have said here…original assets from Evil Dead movies would be awesome but I feel like maybe Spooky is realizing a path toward mainstream themes is the way to grow. True horror-based themes can still be somewhat polarizing to the general public. Scooby is about as mainstream as it gets while still retaining just a hint of creepy-ness.
I would be shocked if it would be themed after any of the universal monsters properties. That’s one of those licenses that universal thinks is still worth boatloads of gold even though the general public could care less about the universal monsters. The only time I ever see anything monsters licensed is when I’m at Universal Studios’ theme park.