The talk of changing SE has been going on for some time. The biggest problem seems to be that in order to put in the Time Racer ride, they would have to use all of the walkway to the left of the entrance to SE as the "launching point" for the new ride, which would involve building an additional structure that would take up the area from the camera and gift shop back to guest services, effectively eliminating the walkway on the left side of SE, and having all of the bodies both entering and leaving the park pushed to one side of the sphere. Anyway, next time you go to WDW and ride SE, you will notice that they have already re-habed several of the scenes, and chances are good that you will see another scene curtained off while they re-do another area. They have apparentley dropped the Time Racer idea for the immediate future in favor of a re-vamp of all of the dioramas inside SE.