The Nikon D600 full frame DSLR camera is coming soon. I have already posted the D600 detailed specs and we already know how the camera will look, we are just missing the announcement date. There is some talk about a scheduled Nikon announcement on or around September 13th, but nothing is confirmed at that point. Maybe Nikon will wait until they sell all of their 24MP D3x camera which will be very difficult with the current discounted price of $6,899.
I have no reliable intel on the potential Nikon D7000 and D300s replacements. Since Photokina is less then a month away, I doubt that we will see any new DX cameras at the show.