Surely to goodness Nikon know there's a need for top line DX?
I use a Sigma 50-500 for my telephotowork- and for me that's 75% of my pix. To do the same job in FX, I'd either need an FX 75-750mm-which doesn't exist and if it did, would need another man to carry it for me. Or I need a 45Mp FX/DX camera, to leave me about 24Mp when it's in DX mode. The 16Mp DX crop of the D800 isn't enough of an improvement from the 12Mp in the 300s.
Just give us a 24Mp or better DX body with CAM3500 in it.