The second batch of DLC for Trials Evolution is headed your way in December (yes, that's this month), and it's titled 'Riders of Doom' in celebration of the end of the world. Riders of Doom will run you 400 MS Points ($5 USD).
The DLC includes 40 new tracks set in the Big Sand Lands, an apocalypse-inspired environment that will be built up and destroyed throughout the stages, and a new Banshee bike. Riders of Doom also adds "hundreds" of new editor objects to the level editor and has 10 new Skill Games, including an infinite series of generated extreme obstacles.
If the world is going to end, you might as well go out playing Trials Evolution.