Why would they release 3D versions of existing films?
Films are already 3D. That's kinda what films are, 3D representations of images.
Edit: Also, Star Wars 4-6 was great, all other additions to Star Wars, be it prequels or games or comics or fanfics or Freelancer Mods, absolutely suck. The universe and lore is utter dogs balls when you actually look at it.