You're right, now that the lightsaber has been perfected, there's still a lot of color flaws in that scene. 3PO's highlights still have too much red, there's way too much blue in the whole frame (excepting the lightsaber), and as you pointed out, the chess pieces are dramatically oversaturated in the '04/'11, even compared to the '97 SE.

Harmy's probably sick of working on this scene, maybe some other time he could come back around to that stuff.

With mverta's recent revelations about how warm the original color timing was, Harmy may potentially have to do color fixes to every single shot in the movie....