Fang Zei said:

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.

Whatever they do, the DNR on TPM and the colors on AOTC could certainly use improvement.