There may small gap indeed between the 1982 theatre and the bakery kitchen added in the past decade.
And crowding will be an issue. I dare say a separated exit lane will run along the entrance / queue route.
As much as I like imagining myself darting through the gift shop, and sprinting down the corridor to beat the opening rush to the Rat entrance, it probably would cause havoc for there to be access that way.
I suppose it's going to be it's own little Splash Mountain-like cul de sac.