It appears that the specs for the Nikon 1 J2 have leaked out, along with several more images.  See the meagerly updated specs and more images below.

• 10.15 million pixel sensor, CX format, built-in image plane phase difference AF
• EXPEED3  image processing engine
• ISO range: 100-3200 with ISO high of 6400
• Electronic shutter: 1/16000-30, Bulb, Time (when using the ML-L3)
• 10 fps continuous shooting, 30 fps, 5 fps, 60 fps in high-speed continuous shooting mode
• Video is 1920x1080 60i, H.264/MPEG-4 AVC compression method, MOV file format
• Media: SD / SDHC / SDXC
• 920,000 dot LCD monitor type 3 (J1 had 460k dot LCD)
• Dimensions: 106mm x 61mm x 29.8mm
• Weight: 237g (body only),  280g (with battery and SD card)
• Eigth creative modes: miniature, select color, soft, easy panorama, backlight, night scene, night scene portrait, four exposure modes

[via Nikon Rumors 1 & 2]