There has been many rumors over the upcoming prequels titles, but the best leeds that I have heard are...
Episode 1: Balance of the Force
Episode 2: Betrayal of the Force OR Rise of the Empire
Episode 3: Fall of the Jedi
In Episode 1, Episode I features the return of the Jedi (as well as droids, aliens, and others)
Episode I will offer a wide variety of new characters and aliens, but will also return familiar characters to the screen in new adventures. Obi-Wan Kenobi, played by Sir Alec Guinness in the classic Star Wars Trilogy, will appear in Episode I as a youthful Jedi played by Ewan MacGregor. The Jedi Master Yoda is brought to life once more by Frank Oz, and R2-D2 is back in action with a little help from his old friend Kenny Baker. Some of the alien races glimpsed in the classic trilogy will appear here and there as well, including Jawas, Tusken Raiders, and others.. It is currently set for release in May of 1999. Also the crew finished filming the first section on September 29 1997.
Episode 2 emphasises on Anakin falling in love with the young queen. He will wed her and start his journey to the dark side. Also we will see the Emperors rise to power in the absance of the once powerful Jedi.
Episode 3 is the completion of Anakins fall from grace. The duel between Obi-Wan and Anakin will take place. At the end of Episode 3 Luke will be taken to Tatooine by Obi-Wan and Leia will be taken to Alderaan by Bail Organa.
infromation by the official star wars page
