There's an interview on the BBC with George Lucas over CLone Wars and near the end of the interview Lucas lets out that he's working on a Live Action StarWars related show/movie with a darker theme to it, he doesn't delve too much into it but he did mention it
http://news.bbc.co.uk/2/hi/entertainment/7542192.stm << the interview can be found here and he talks about this Live Action project nearing the end
i wish the interviewer would ask him about blu-ray :/