I hope the Disney guys do the same for the upcoming movie (I don't doubt that JJ might prefer it, being the afficionado of the series that he apparently is, but whether "the suits" up there in the House of Mouse think it's a good idea is another matter).
Generally when Disney acquires a property, like Pixar or Marvel, it's because it attracts an audience (and money) that their own products don't, so they want it to keep doing exactly what it's already been doing, with the only difference being that the profit goes into Disney's money bin instead of somebody else's. I'm sure they want Star Wars to keep being Star Wars, because that's what creates audience loyalty.
On the other hand, the difference as I understand it is that Pixar and Marvel Studios are independent production companies owned by the Disney corporation, alongside the Walt Disney Studios which are also owned by the Disney corporation. Whereas Lucasfilm has been absorbed within the Walt Disney Studios as a subset of that production company. So it's possible that Lucasfilm won't have quite the same autonomy that Marvel does, say.