Obsidian Entertainment is Hiring!

Obsidian Entertainment's official website has been updated with an announcement that the company is looking to hire a Systems Designer for an upcoming action RPG powered by the Unreal Engine. The full announcement:
That's right aspiring Obsidian employees! We are seeking an experienced Systems Designer (PS3, XBOX 360, and PC) for a console action role-playing game using the Unreal Engine. Game industry experience and previous systems and/or interface design is required. Head on over to the jobs page to read all the details and perhaps even apply!

Any guesses as to what this game could be?