I have the feeling Nikon would prefer people to buy a D800/E or eventually a higher MP model 2013 and use it in DX mode.
Just to follow on that point you raised, I wonder if many people continue using DX lenses to a large extent, even some time after switching to an FX body. For example, would someone continue to use a 17-55 DX or similar, on a camera like D800/E, rather than switch to 24-70 or equivalent?