Well for one.., I still would not expect it to be a "mega maze". Logistically, it doesn't seem plausible for that space to have a maze larger than one of the open-space tents (even if they utilize French St, which i'd see as a cop-out). It is literally a design challenge/nightmare when it comes to the Parisian Courtyard. So I wouldn't get my hopes up. Its a "I'll believe it, when I see it" & "Murdy confirms it" situation.
When I'm talking about scenes for All Night Die-In (or even Silver Screams), I'm referring to actual large rooms (or hallway depending in some cases) recreating a specific scene from that particular film. And this was located inside of a soundstage which obviously has more space.
ANDI didn't exactly have separate transition hallways, unlike Silver Screams. That had hallways dividing each scene & would include a movie poster for the film you were about to walk into. The other difference with Silver Screams was, each film depicted (Phantom, Shaun of the Dead, The Thing, Army of Darkness) only had one singular scene each. The rest was devoted to the icon (ticket taker hallway & death scene) & the "movie theatre" hallways (which had zero scares).