I think you're probably right. But it will depreciate D700's a little more, nonetheless. Personally, I think it'll have 24MP like the D3x, and ISO's about on par with the D700 - even a smidge better in the prints.
It won't effect either of the D3s, which is highly specialized, fast, and has market leading sensitivity, or the D3x, which doesn't sell enough, and won't languish long anyway.
It will help Nikon market a whole lot of D800 to those looking for a "pro camera" at an enthusiast price...
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