I think Disney might not "mess up" Star Wars outside of more merchandizing. As it's already established with a super strong fan base they really don't have to do anything. They've done okay handling the Muppets they own, except for not releasing more seasons of the Muppet Show :/ A good line of 12" figures would be nice, I know someone who'd like a Lea with brushable hair to hang out with Princess Jasmine.
I'm wondering how posable those princesses are, or you could put the head on an Obitsu. Being that toy season is upon us I'd recommend buy anything the moment you see it and worry about keeping the cat off later.