It looks more and more the GK110 part has always been intended as a compute card and the GK104 has always been the 6 series video cards.
If anything we may see a refresh or some mid range cards dropping in November, and 3Q 2013 for 7 series. There is no pressure from ATi/AMD right now, nVidia has the performance, price/performance, performance/watt, and thermal performance crown (or whatever Nvidia/ATi fetishists want to pretend their brand is winning).
The 7990 HD has seen some setbacks, but I am hoping it comes out soon.