No, the colours of the OT at the Star Wars concert were exactly the same as the 2004 set. Only TPM had a really good restoration job done to it. The colours in that looked perfect and CG Yoda did look pretty good from the glimpses we got. It was reported by someone who went to CV that the Ep4 showing they managed to catch part of didn't look like it had Luke's green sabre but they weren't sure.

Don't forget that the colour changes were done by Lucasfilm Before they sent it off to Lowrey so i can't see them paying for another restoration