This thread is for your theory on how the Sith will come back in the ST. We know that a Jedi without a Sith to fight will make for a very boring film, my idea is that Sidious did not die at the end of ROTJ (covered in a seperate thread). Others have mentioned a 'Sith Holocron' I have no idea what this is but I'd like someone to explain it? Another theory I've heard is that Sidious had a secret apprentice, one that Vader did not know about? Seems unlikely to me. What is your theory?