In an interview with Variety John Carmack said, there are no plans for dedicated servers yet.

It’s not cast in stone yet, but at this point no, we don’t think we will have dedicated servers


After Infinity Ward's decision for MW2 it's now id software who thinks "the servers are something of a remnant of the early days of PC gaming."

Maybe RAGE isn't going to become an interesting multiplayer game (for us ESRers) anyways, but it shows how developers and publishers think about that topic.

http://weblogs.variety.com/the_cut_scene/2009...-hear.html