Can one assum that they will publish the diffraction limits on each lens when used on the D800E ie what f stop to avoid? Or how small you can go before diffraction?
If they release a 48MP D4x they will have give the same info on that body as well.
Might still be ok at f8 on the same lens. Pixel count would only be up by 1/3.
As Clint Eastwood says from the film Firefox "Boy, is this a machine!"