from info on the french website http://www.photim.net,
translated in english on http://www.infodigitalcamera.com/blog/342/sony-alpha-high-end-amateur-model/

Lens magnification - (Crop factor) 1.25 x
Sensor type and size - CCD sensor (28.6 X 19.8 mm)
Resolution - 14.4 mega pixels
Maximum resolution - 4648 x 3098
Processor - image processing system and two standard of Bionz pixels
LCD screen - 2.5 inch (230,000 pixels TFT display)
Viewfinder - 95% view coverage
Magnification - 0.9 times magnification with diopter adjustment and eye-function
Battery - standard NP-FM55H
Memory - Recorded media CF I & II which can record a capacity to support more than 4 GB of memory
Image format - JPEG, RAW, RAW + JPEG
Sensitivity - ISO 100 - 3200 / Mode speed LO80/HI200
Autofocus - Focusing AFS AFC DMF focusing area regional/local wide area/fixed focal
Flash - Support high-speed flash mode flash synchronization function, with wireless flash function and cited slower doors automatically synchronized flash, fill
Wireless Flash - from the camera (using HVL - F56AM, F36AM flash) arrange of the X-synchronization flash: 1/160s and 1/200s
Flash Control - ADI, pre-flash TTL, Manual adjustment built-in flash for flash 12 shooting performance coil-support functions 10 the second gold 2 seconds
Sequential shooting function - 5/dry sequential shooting, JPEG unlimited, RAW, RAW + JPEG
Support anti-red eye exposure
Automatic exposure mode, aperture priority, shutter priority and full manual
Exposure modes, such have exposure compensation +-3EV 1/3 to adjust the exposure
Measurement central x-ray meter, spot metering, 40 regional cellular linen meter,
Shutter Speed - 12 shutter speed 1/4000 seconds to 30 seconds the door to other B focusing system edge Be optimized, focusing faster more accurate.
There has been suggestions the name of the new model may be called the Sony A300 with the high end model called the A500. Again, speculations are that the Sony A500 could have a sensor with up to 20 mega pixels.

more here: http://www.infodigitalcamera.com/blog/342/sony-alpha-high-end-amateur-model/