According to Deadline Hollywood -- Oscar-winner Marion Cotillard. Now she's someone I'd expect to pop up in the Woodyverse. She's talented, young, female, and beautiful -- everything Mr. Allen likes in an actress. (Oh yes, and French!) There's more -- with this announcement, we also get one small detail in Woody's usually pre-production void of silence. We don't know a title, or a plot, but Cotillard will play Wilson's "muse." Considering that, I think it's fair to assume that Wilson is some sort of writer/artist/creator.
Production will gear up in gay Paris this summer, so we should hear more soon. Who knows? Maybe Ben Stiller or Peter O'Toole will be next!