Rockstar came out with news today about GTA IV Episodes. 
The Ballad of Gay Tony is set to be released in the fall.
Rockstar Games announced that The Ballad of Gay Tony and The Lost and The Damned will be released as a compilation disc for Xbox 360.
Grand Theft Auto: Episodes From Liberty City, will be the title of the disc. It will cost you $39.99, but the good thing is you do not need a copy of the original GTA IV to play.
Souce: Kotaku