Darth Mondragon sends in this report:

Just doing some research on EP.II using the "StarWars Behind the Magic" CD-ROM and a couple of things popped up which may give us some info. about the next chapter in the saga.

In the section which tells us about 'Ancient History' it says that during the Sith wars, two fallen Jedi (called Exar and Ulic). "invade Ossus, home of the ancient Jedi library in a final bid for power". With official sources stating that an Australian actress has been cast as a 'Jedi academic', we may possibly see some events which are along these lines.

Also, "Bail Organa was a decorated war hero, having fought in the Clone Wars at the side of General Kenobi and others". According to the glossary section, which leads me to think we'll definitely see Jimmy Smits in action and not just as a pencil-neck (senator, I mean).