Yup, I've heard from my friend in the company that this is all but a done deal.
It would be really cool to see it tied somehow to the history of or the evolution of Mickey and the gang.
It's one of my favorite rides but I do agree that it's passed its prime. Something fresh needs to go in there. I hope it's a worthy replacement for a classic ride!
The last that I heard, TGMR was not going anywhere until Star Wars opened, but we shall see.