Star Wars: Episode III Revenge of the Sith...
So the 6th Star Wars film to be made will be called Star Wars: Episode III Revenge of the Sith. According to starwars.com It'll be out in the States on 19th May 2005.
"The Sith are masters of the dark side of the Force and the sworn enemies of the Jedi. They were all but exterminated by the Jedi a thousand years ago, but the evil order continued in secrecy. They operated quietly, behind the scenes, acting in pairs - a Master and an Apprentice - patiently biding their time before they could take over the galaxy. In Episode III, they'll finally exact their revenge on the Jedi."
As the last couple of films have been a tad disappointing maybe this really will be Revenge of The Sixth.