Eh, no new games coming anytime soon so I'd wait to compare the 7series to the Titan directly. The Titan is overkill for 99.8% of gamers anyway. Save your money.
A comment fom the 0.2% gamer
I play at 1080P with a GTX 680 @1200MHz core clock (Asus DirectCUII Top) and when I max Battlefield 3 out I get framedrops down to 42 frames. I notice those frames drops and they bother me. So I lower the video setting (no AA f.e.) to get average frames of around 100 and frame drops down to around 70. When I wanted to max the game out, the next faster card from Nvidia would be the Titan. So I think the Titan is a realistic purchase option - apart from the price and if you do not have a 680 you could expand with a second 680 f.e..
@One Man: What GPU do you have atm in your rig?