The D3X has been in development for a while and was mentioned as far back as October of last year by key Nikon UK staff; they were well aware of the demand for a high MP count body by wedding and commercial photographers, not to mention that they weren't going to concede that segment of the dSLR market solely to Canon with the 1Ds Mk III.
We were told to expect a body with between 18 ~ 24MP sensor size and based off D3 tech. The high ISO performance wasn't going to be the same... other than that, they said we "wouldn't be disappointed"
