I doubt that trailer is from in-game footage.
UT2007 is the next game I'm waiting for. Call of Duty 3 would be nice, but looking at that trailer, it doesn't seem like they're gonna change much from COD2. Specially if it's only taken them a year.
World War II games are getting a little old now too. Glad DICE went with a futuristic sequel in the Battlefield franchise.