>Hi Mark, > >Assuming the D400 will be the replacement for the D300s, I >would expect it to have an AF-ON button. I also suspect the >controls will be the same or very similar to the D800/D800E. >Good Luck and Enjoy your Nikons!
Yes, AF-on button, PC terminal, 10-pin terminal, 51-point AF, 7 fps (8 fps w/grip), and 24MP DX sensor capable of EI 25,600 at high setting are all what I would expect in a D400. Body will likely be similar to the D800, but in between it and the D600 in size and weight. Pretty obvious are the basic specs of this hypothetical camera body if you ask me.