I don't think this is what happens. I think we see the eventual death of the muppets at DHS. The really telling thing - we did Muppets 3-D in August, and they litterally have next to zero muppets merchandise in the store. Now they cut PizzaRizzo (which they JUST built) to seasonal, and cut hours as Muppets 3-D? This all bodes poorly for that area. I think they don't have the money to do it now, but once Star Wars is an overwhelming success, they won't want to shut Star Tours down. Instead, they'll ask for (and get) the money to convert that area of the park. They'll shut muppets, PizzaRizzo and Mama Melrose down, and retheme this to a "entry port" for Black Spire Station. You then can ride Star Tours as your "entry" into the land. The former Muppets/Grand Avenue becomes some sort of Star Wars stage show in the theater, and another Star Wars restaurant.
I know no-one is saying this yet, but I bet it happens.