“Last year, Modern Warfare came in and totally owned the Modern Warfare genre. Make no mistake — that is exactly what we are going to do with this one. Call of Duty: World at War will own the World War II genre, and we are out to make the best shooter this year.”
Mark Lamia — Studio Head, Treyarch

Here is the latest information and a few early screenshots from the upcoming Call of Duty: World at War. Treyarch was given a  two-year development cycle, double that of their previous title,  Call of Duty 3, the extra time looks to be paying off.

Check out the just released trailer:

This installment uses an enhanced Call of Duty 4: Modern Warfare engine with improvements to the physics engine and lighting model.  Environments are now more destructible and can be set on fire with the flamethrower (which features propagating fire).  Bullets  can also cut holes in thin wood, making a gap big enough for the player to climb through.

Call of Duty: World at War  will feature  cooperative gameplay  (two players via  split-screen  or four players online) for the first time in the franchise.  Vehicles and new squad-based elements will be utilized in multiplayer.

[source]

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