What I'm trying to say is that Ep7 will doubtlessly contain a lot of cgi, but it will be used as a storytelling tool and not as an excuse for stuff like the ronto and jedi rocks.

To get this thread slightly back on topic, I'd like to point out that the final 2k digital production files for both AOTC and ROTS are more than likely still sitting on a server at Lucasfilm with multiple backup copies. It was mentioned on the official website back in 2011 that the blu-ray's were in fact newly transferred from the digital source rather than simply dumped from the existing hd transfers. The 35mm prints are by no means the best available sources for those movies.