Just wanted to show what the official site's announcement of this looks like - http://starwars.com/movies/saga/prime_focus_star_wars_3d/index.html
Out of the various 'conversion' companies out there, I gotta say that the one responsible for the 'CLASH OF THE TITANS' mess (not mentioned, funnily enough) would not have been my first choice...
And GL's claim that "I'm very happy with the results I've been seeing on Episode I" doesn't automatically fill me with confidence about their involvement.
It's not clear just how much input they had in some of the other titles mentioned, but I just hope that 'Prime Focus' have got their act together for the saga's release. And here's their site announcement - http://www.primefocusworld.com