The Emperor tends to have his thunder stolen by Darth Vader a little when the great movie villains are being discussed, but for my money he is right up there with his apprentice. Ian McDiarmid played the character brilliantly in 4 (5 if you count his brief appearance as a hologram in Empire) movies, even making parts of the prequel trilogy bearable! Although Palpatine met a dramatic end at the hands of Vader in Return Of The Jedi, some fans are eager for his return and have wondered if he might somehow be a part of the new batch of films coming our way. Unfortunately McDiarmid doesn't sound optimistic about that, but he certainly seems eager to get those black robes on again in some capacity.
“Yes, I’m sort of interested in any future development he might have. Unfortunately, as you probably know, he died at the end of Episode VI, Vader sent him to cosmic hell so he’s not going to feature in any of the new Disney ones, I don’t think. On the other hand they’ve got lots of exciting ideas for spin-offs about separate characters and so on, and then there is the television series which George has talked about and decided to make into being for a number of years, and that takes place between Episodes III and IV when the Emperor is very much alive. So I think he probably does have a future."
For the full interview click the link below.