Mistborn: Birthright is a prequel set several hundred years before the events of the first trilogy and will depict the misadventures of Fendin 'Fiddle' Fathvell, a young nobleman who must master his Allomantic powers in order to save his family. Brandon Sanderson has written the storyline for the game.
The game is due for release around Autumn 2013 on the X-Box 360, PlayStation 3, PC and Macintosh formats.
Hmm. Interesting but also risky. The game creators are pretty much total unknowns. Little Orbit and Game Machine have worked predominantly on undemanding DS and iPad/iPhone games. They are unproven at making a large-scale, Triple-A fantasy RPG that can compete with the likes of Bethesda or BioWare. That doesn't mean that they can't do a good job (everyone needs to start somewhere), just that I'd have looked for a company with a bit more experience first. Still, worth keeping an eye on.