The mistake Doom3 made was being the best corridor shooter ever made after corridor shooters had fallen from favour. I'm looking forward to Rage.
15th of September 2011 if you're in Europe. Apparently there'll be some sort of Multiplayer, but I hope it's not the same thing as what they did with Doom 3 and Return to Castle Wolfenstein... That was pretty crappy multiplayer Q_Q
I'm really looking forward to Rage for the engine alone, the game looks amazing and I think Rage will run amazing too which is rare to see now days because the Carmack is a god like programmer.