This is the very first I've heard of this, but apparently this is Chomet's feature-length follow-up to the Triplets of Belleville...from an unproduced script written by Jacques Tati!
Described as being about "a dying breed of stage entertainer whose thunder is being stolen by emerging rock stars. Forced to accept increasingly obscure assignments in fringe theaters, garden parties and bars, he meets a young fan who changes his life forever.”
Just jumped up my list of most anticipated, that's for sure.
http://www.ioncinema.com/news/id/318...he_illusionist