Has anyone heard anything about new areas in?

I know we heard of The Wastelands( Main city Wellsprings) and The Easternlands (Main city probably Subway Town), but has anyone ever heard of any other "lands" from Rage. And does anyone know how many areas there will be?

http://rage.com/en/about-rage

These are the only places I know of, but I'm pretty sure that the vids we've seen show more.