Honestly, this game had so much going for it pre-launch, a compelling story,
potential for a superb MP platform, 60 FPS, open world, some cool customization, etc. It just seems like at some point, the studio said, "we've spent enough time on this project, we're going to publish what we've done, make it happen. Nevermind that the story isn't finished, there's no DLC, or that our PvP multiplayer system will not feature anything that made this game pop".
I've been away from Rage for a while, hoping that we'd get something to tie-up the loose ends that we all know about. But nothing?
I think the studio gave up on this game before it was even finished, and had to release what they had because it would have been too expensive to scrap it all.