If there's anything that could bring more credibility to Star Wars, it's less control from Lucas. Now we might actually see the original trilogy released without all the special edition plastic muck. Or perhaps restored, but not ruined with added scenes and horrible modifications.
And since Lucas already ruined Star Wars with Episode I-III, I have absolutely nothing against further Episodes, especially since they likely won't let Lucas direct them.
Sure Disney is known for sanitising their products, but Star Wars has always been pretty clean. I am not worried about that. What does concern me, is that Disney will now control ILM and LucasArts, possibly affecting what projects ILM contribute to, and the contents of LucasArts' games.
Always in motion, the future is.