Thinking about the line flow, It looks like to me (and I can be, oh so wrong); the entrance will be over by the OG Disaster entrance, as it will then loop out to an overarching outdoor queue area, themed as if it was alleyways; and the first building you enter will be the one located right at Beetlejuice. Then, it will spit people out behind it, to another alleyway area as it then takes people into the main showbuilding.
It's a guess, but who am I to say what will be the flow.