Similar to the Nikon D4 (again!), the French magazine Responses Photo published an article about the upcoming Fuji X-Pro 1 camera. You can download the entire article here. A brief translation of the specs from the same forum:
Pricing : around 1300€ including the 35mm lens. The other optics being around 600€ (“according to their informations”, and “to be confirmed”)
Sensor : APS-C 1.5x, CMOS, Fuji “X-Trans” technology. Photosites pattern is 6 sides (as opposed to Bayer 4 sides). There is no anti-moiré filter, which will allow better resolution. [Note that there is no word about an organic sensor]
Lenses are full metal. “Fujinon XF optics are announced as exceptional”, They are 18 f2.0, 35 f1.4, 60 f2.4 macro (equiv 27, 53, 90)
New mount is “X-Mount”. “tirage” [flange-back distance ??] is 17,7mm. “Diameter is large enough to let the rear of the lens get inside the camera (up to 7,5mm to the sensor)”
“Viewfinder similar to the X100, which allows to switch between optical or electronic sight.With a welcome addition : the optical viewfinder will adapt its enlargement to the lens focal length”
“Other news : an external auto-focus, as hinted by the window above the lens” [???]
Aluminium build
"An optional grip will be proposed”
And one more update:
About the sensor: The colored photosites are layout without a particular order. They are ordered in pairs of six, in contrast to the common four, found in the bayer pattern. This allows to dismiss the low pass filter, which greatly improves resolution figures. The distance between the back of the lenses and the sensor is just 7.5mm. Lenses are said to have circular diaphragms.