BioWare - New Franchise Revealed Soon?

This thread on the Bioforums exposes a tweet that points to a "new franchise" being launched by BioWare at the VGAs in December, although GameInformer will apparently have some teaser images as early as Monday.

Here's Geoff Keighley's tweet:

Also at the VGAs: Alan Wake returns and @Bioware unveils a new game from a new studio. Teaser images in December Game Informer mag.

So, heading off to GameInformer we find:

Three promised reveals include a look at a brand new franchise from BioWare, the developer behind Mass Effect and Dragon Age. We'll also get a look at the next Alan Wake title and a full reveal of Metal Gear Solid: Rising. We'll have the first teaser images of these titles this Monday at Gameinformer.com (also featured in the December issue), so check back then.

Note the "new studio" part in the first quote, so that presumably excludes Edmonton and possibly could even mean a completely 3rd party titled published under EA's new BioWare label.