Wonder if the trackless ride system can be installed into Great Movie Ride? He wouldn't and couldn't say what would replace GMR (if anything does at all), but, would it be out of the realm of possibility that, it does become Frozen's main dark ride? Remove the hat (or relocate it), retheme the theater into the ice castle from Frozen, give the movie a major e-ticket dark ride, using the trackless system, like SeaWorld does with the penguins. You are sliding on the ice in Arendelle. Ice Castle now the park's weenie, and here you now have MK 3.0 (Epcot is MK 2.0).
But, how much would that clash with Star Wars, cause, looking at the map, it seems Star Wars land boundary comes very close.