"Halo 2" Expansion Pack?

Gamespot is today reporting that the official Korean-language Xbox site has listed under its release date section, "Halo 2 X-Pack (Expansion Pack)." If the expansion pack really exists there is no word on when it will launch. Most likely, it will be deployed over XboxLIVE giving gamers more reason to subscribe to the service. If they charge for it, though, I could see a bit of a backlash as many (including me) thought that Halo 2 was cut short in hopes of making more money down the line or to launch a Halo 2.5 on the Xbox2. We'll keep you updated to see if any of this is actually true.