According to many online sources, the Nikon D4x is rumored to announced soon the upcoming camera will feature. the following major specification.,
Same body design as the Nikon D4 36 MP sensor (Same as D800) without AA filter, designed and made by Nikon, with some new improvements (moire in-camera reduction) 6 fps (11 fps is the maximum possible fps with the current shutter)
Few video improvements
Price should be few hundred dollars above the Nikon D4 ($5,996).