The title is the brainchild of Burning Dog Media, a Canadian development firm founded by Michael Dunham and Dave Cruikshank. While specific gameplay details are left to our fertile imaginations, the newly revealed website does hint at a feature set downloaded directly from the minds of starving sandbox fans everywhere. No classes? Check. The ability to change the game world? Check. A conspicuous lack of scripted boss fights? Check. And would you believe mob AI that stalks players over a period of several days, waiting for the right time to attack?
The world itself seems to be a mixture of fantasy and sci-fi, and the Origins website contains its share of screenshots, concept art, and bestiary info.
[Thanks to James for the tip!]