See what Nikon Rumors have disclosed:
http://nikonrumors.com/2013/10/20/breaking-new-nikon-full-frame-hybrid-mirrorless-camera-coming-soon.aspx/
With brief rumoured specs as follows:
- Nikon FM2 like design
- Pentaxprism viewfinder
- 16.2MP 36x23,9 full frame sensor (same sensor as the D4's)
- SD memory card
- 2016-pixel RGB image sensor
- 9-cell framing grid display
- 3D color matrix
