Don't worry, the cameras are coming. Since the quake I've not expected any new DSLR to ship before mid-October (three different reliable sources say D4 ships in January or February of 2012, by the way), so it's not as if announcing them today would make them any more available. And as I've indicated in the past, I'm perfectly happy with the high end Nikons we have (D3s, D3x) and if I had to cut down to only one camera, it would be the D700.
Still, it's a little unusual that we're breaching the end of summer without one of the four systems cameras Nikon has to be working on (mirrorless, plus D300s, D700, and D3s replacements) making some sort of appearance. I've long expected the D300s replacement to get pushed into 2012, but I'm a little surprised we haven't seen the mirrorless or D700 replacement yet.