Brink maybe? Although it's likely to become another id tech 4 consolitis crapfest like ET:QW and Wolfenstein 2009.
Rage? See above, replace 4 with 5.
Battlefield: Bad Company 2 looks interesting judging by some of the beta gameplay videos.
But honestly, regarding online gameplay nothing gets me hot and bothered anymore. The occasional RTCW romp on ECGN gives me my fix. It's nice when they get off beach every once in a while and to see some of the old trammers there.
Regarding single player games: hey Valve, how about some #@{$! Episode 3 already? After Left 4 Dead Eleventybillion maybe?
Oh and Piggay, go play Halo ya pikey nublet