Valve have confirmed
the Pyro update for Team Fortress 2 is coming at the end of the week:
The main event of the week is the Pyro Update, which will be made available this Thursday and contains three unlockable new weapons for the Pyro plus 35 new achievements. In addition, two user-created maps are included to highlight the great work being done in the community and distribute those works to all TF2 players..
Further, the "Meet the Sniper" video will be out soon, and there's another TF2 free weekend planned this weekend to give more people a chance to play the game.