Okay, so we've got plenty of the original cast in the film, and a new Star Wars trilogy should really be about new characters having new adventures, not just retreading old ground. As the prequel trilogy exemplified, that's not fun for anyone. At all. But if you're going to tell a story that relies on the characters from the original trilogy, it seems unfair to leave out Lando Calrissian, a member of the Rebel Alliance who was crucial in the fight against the Empire and helped bring down the second Death Star! Alas, Billy Dee Williams says he hasn't received any calls to appear in Episode VII or any future Star Wars media, which is a damn shame.
