Pretty sure Lucas is done. Maybe tv shows but the movies are over. he admitted he had no idea what to do after Return of the Jedi last I heard.
Then, that would put him at the bottom of the old imagination ladder. It shouldn't take too much effort to come up with something that would get kids and Star Wars geeks like me into a theatre.
Last I heard, Lucas was working with Spielburg on a 4th installment to Indiana Jones movies to release as well.
I read the specifics over at aintitcoolnews.com a while back but the gist is another adventure like the other 3 but Indiana had a young study with him which would do the 'action' while Harrison flushed out the character depth and advanced the story.