It wasn't until many years after I had seen ROTJ that I found out that the man who played the Emperor wasn't even the same man who was in the Hologram in ESB. I thought they looked the same to me. And he was creepy looking, I tell you what.
I haven't seen the "updated" version, but from what I have read it doesn't look good. The Emperor gives away too much information too soon. Plus he says a corny line like "Search your feelings, you know it to be true." Lame. That is what Vader says to Luke on Bespin. Now it just sounds like Vader is a copy-cat in dialogue (even though technially he said it first.)