The only thing holding Epcot back is lack of investment. Seems they've finally committed to putting billions into the park now. Purists may not like the direction it's headed in, but honestly, i'm just glad Epcot is finally seeing the WoL Pavilion being put back into use and the park is actually getting new rides.
The only things for me that I would hate to see go from the park are SSE, Living with the Land, American Adventure and Figment (the actual pavilion needs an update, but the character needs to stay).