Rockstar will be leaving Niko behind in the upcoming GTA DLC entitled "The Lost and Damned". 360 players will take the roll of Johnny Klebitz a member of the biker gang The Lost (Remember you chased down one of them and killed him for messing around with someones daughter?).
According to Dan Houser "Johnny is a very different character than Niko, with a very different background. I can't go into too much detail on the story, because we try not to give away too much plot before the game is released. But I can say that the story will show yo.u a different side of Liberty City."
No price has been announced yet (gaming insiders are predicting $15-$20), but the DLC is slated to come out on Feb. 17 (Winter 2008 my ass) so you have plenty of time to start saving up penny's