ShackNews has info on the upcoming Quake 4 v1.3 patch which will have 5 new maps and two new game modes in addition to all the regular patch stuff.
http://www.shacknews.com/onearticle.x/43141
Ritualistic and PlanetQuake4.net both have previews of the upcoming Quake 4 1.3 patch, revealing that Ritual Entertainment has created new maps and two new game modes for Raven's shooter. One new game mode is DeadZone, where the players have to hold zones in a map to earn points.