Looking at an birds eye view of bing maps we know they will be using the backlot express restaurant and we also know that a new theater is being built by RnRc to replace the Premier theater,between those two is Star Tours, the Muppets,Mama Melrose and Pizza Planet.There's been a rumor that the park could expand out and use the Studios Dr entrance road for a lot of the Star Wars addition.This is possible as you would have the Backlot express area and everything backstage behind it as well as behind Star Tours all the way to the Premier theater for Star Wars expansion.This of course would require building the other rumored entrance by Victory way.Since I love the Muppets as well as the Osborne lights and prefer to add on to the park instead of continuing to remove attractions for future additions this would be my choice,you could have Star Wars and still keep the Muppets and the Osborne Lights in their place.If this is not the option they go with they would basically have to get rid of everything,Muppets,Mama Melrose,Pizza Planet and the Streets of America leaving a displaced Osborne Lights which would have to find a new home,at first temporary and then permanent.If this is what they do I wonder if they may consider building a street in the new Toy Story land to possibly have the Osborne lights,seems like it could be a good fit for a permanent home.A third option and one that wouldn't bother me as I rarely do the show anymore is to tear down the Indy show and go there for Star Wars,to me this doesn't make sense as it looks too small and there's been a rumor of an Indy ride going in to take it's place as well as knowing that the Premier theater space will be used in the addition.In the end I know nothing but these are the options I see from simply looking at a view of the park.