A true D700 successor: D600 sensor in D800 body ... and fur gods sake, leave the damn video out!!!

Pondering the posts in a recent thread on this forum, "What would cause you to switch to canon?", several references appeared to the Canon EOS 5D Mark III as a the 'true' successor to the D700. I think, Nikon could easily beat the 5dmk3, both feature wise and on price point, by putting the 24MP sensor of the D600, which, judging from the posts on this forum produces awesome images, into the D800 body. I for one would jump on the D750 (what else would you call it?) before it even hit the store shelves. Would anyone else be interested in this camera? Will Nikon ever produce it?