The Player v Player (PvP) gameplay mode is one of the most highly sought after by the Hellgate community. As such, Flagship Studios has promised that this will make an appearance, albeit post-release.
As such, there have been no specific details released about what PvP will entail, only that it will be made available shortly after release. That's right- fret not all you PvP fans- you won't be waiting too long! It was mentioned at the June 2007 Asia Launch party event that these extra gameplay modes will be the focus of the very first post-release patch.