Erikstormtrooper said:
Bob, I was thinking about the way that Palpatine looks older in AOTC than he does in ROTS. Do you think it would be possible to make him more pale in ROTS (via color correction), to make up for this?
As BarBar mentioned. I would edit the footage from AOTC to make him appear younger. It's amazing what alittle color tone and the remove grain tool in AE can do for things like this.