A Star Wars theme SECTION of a theme park would be pretty awesome. And if anything, I think Disney would probably use something like 'The Wizarding World of Harry Potter' at Universal Studios as a template. Make a significant Star Wars themed section in Disney/MGM Studios along the lines of that Harry Potter attraction at Universal. I think the potential is definitely there in terms of individual attractions, rides and eateries. I mean, who here would want to get a drink at a Mos Eisley Cantina restaurant?
As for rides?
-Pod race in Beggars canyon
-Endor speeder bike ride
-Hoth asteroid field space chase
-Space battle ride (pick one!)
-Mos Eisley cantina
-Jabba's palace dinner/entertainment
...and that's not including what could be coming from the new movies which could feature prominently here. Oh, and the GIFT SHOPS.