It seems as though Nikon wants to get away from calling their next cameras direct replacements for current bodies. For example, Nikon claims the D7000 is a totally new model and not a D90 replacement. Even though it pretty much is...kind of.
What if the D700 replacement isn't really a direct replacement after all? What if the next full frame Nikon is introduced with video and more megapixels but with a lower price of $2499 without a lens? However it loses part of it's metal body? Basically it's a D7000 with a bigger prism and sensor. Just like the D700 was to the D300.
Now what if the next DX semi-pro Nikon body actually goes "pro" in features and price. Let's say it'll MSRP at $3199 but will gain a 24mp sensor, built-in vertical grip and have pro weather sealing, etc. Basically the D300 "replacement" is a new D2X in a smaller and lighter body.
The gap between the new FX $2499 camera and the D7000 would still be filled by the D300S(DX)and a lower priced D700(FX at $1999)? And one more scenario to consider. What if Nikon introduces a new mirrorless EVIL "pro-like" camera priced around $1799? A digital SP rangefinder-ish camera but without the full frame sensor?
These cameras have all been rumored for a long time but how would they fit into Nikon's current lineup? I think the only people who would NOT be happy with this lineup would be those waiting to upgrade their D300/S and who want to stay with the DX crop. Seems like a pretty big jump from the D300/S to a $3000 dollar DX camera, but then maybe Nikon wants you current D300/S owners to either move up to pricier FX bodies and lenses. Or Nikon wants you to move up to a truly "pro" DX camera. Otherwise the D7000 is Nikon's new semi-pro DX camera.
So how do you like them apples?