Posted this in the news thread - but even more relevant here:
I had just received an e-mail to watch a video to enter a DVC resort prize pack with "behind the scenes" stuff. There wasn't very much behind the scenes that those of us here don't already know, but at the end they mentioned the Riviera resort and said "Themed to a Mediterranean seaside Resort". I know we had a debate as to whether it would themed to the Mexican Riviera or the French Riviera - but it appears it is indeed the latter. If I am not mistaken this is the first time this has been stated by Disney.