The Ghost Recon Website has word on plans for a second map pack for Ghost Recon: Advanced Warfighter (thanks Frans). Word is:

Today we're releasing more information about the GRAW PC Map Pack #2. See below for 2 screenshots, each detailing a new game mode that will be added with the map pack. Additionally, this map pack will implement the death cam, a feature showing you how you died and who shot you. This pack is still in development, aiming for a release at the end of July or beginning of August.