This is an interesting idea.
Does Disney have much of a history of moving attractions around on the same property?
I remember that an attraction was moved from WDW to Tokyo many years ago, but I can't really recall another other examples of MOVING an existing attractions. Of course, there is plenty of COPYING that goes on! :ROFLOL:
There are several instance of moving attractions themselves (or parts of them).
COP is the best example, as it was moved from DL to MK.
The one that moved to Tokyo was the Mickey Mouse Revue (a beloved former attraction...sigh).
Parades have, of course, been moved -- MSEP, Block Party Bash.
I think the floats in the Festival of the Lion King show at DAK used to be in the Lion King Parade.
Many of the AA figures in DLR's Splash Mountain were from the America Sings show that went into DL's Carousel Theater after CoP moved to WDW.
Do I really think they'll move CoP again? No. But, if they figure out some great new attraction for Tomorowland that would utlize the carousel theater but not the AA's and sets, I could see them considering updating CoP and tying it into Innoventions in some way. Fact is, though, that while it would make the dedicated fans like us very happy, I doubt it'd have much appeal for the wider guest population.