Look, in my own opinion, I've never been a big fan of prequels/sequels that go out of their way to shoehorn every single familiar or fan-favorite character into the new narrative. Prequel appearances by characters like C-3PO and R2D2 (oh-so-conveniently present in the saga of Anakin Skywalker as they were in the saga of Luke Skywalker) still irks me almost as much as Jar-Jar Binks. On the other hand: an appearance by Ghost Palpatine is intriguing, since we've never seen Sith ghosts onscreen befo...