A tweet by Infinity Ward's Robert Bowling reveals some of the voice talent from Modern Warfare 2 (including Keith David, one of Hollywood's great voices), and says that development of the game is "all coming together," if you are hoping for signs that development of Infinity Ward's military shooter sequel is nearing completion:

It's all coming together! Kevin McKidd, Craig Fairbrass, Barry Pepper, Keith David & Glenn Morshower's final voice work going into the game.