So far they are going to make this house simple, I don't think it will be messed up, the concept of the house according to the information is:
The Wilson Family Beach House
Santa Cruz Pier
Fun House
Tunnels with The Tethered
There really isn't going to be a lot of parts from the movie that will be used which is fine, it's going to be a pretty simple house and everyone is treating it like they are going to go scene for scene when they aren't.