The next Assassin’s Creed: Brotherhood DLC, the Da Vinci Dissapearance is now available for download on Xbox 360 and PS3. The DLC features new content for the single player and multiplayer modes.
It takes place after the fall of the Borgias in Rome, and Leonardo Da Vinci has been kidnapped by an underground cult called Hermeticists. Check it out in the fresh trailer above.
Thanks to CVG for the info.