Marco has posted a few photos on Cellphonesignal, and he said the mobile phone in those photos could be the HTC Shadow 2. According to Marco, the FCC passed the new HTC Shadow 2 and 3. And the HTC Shadow 2 will get WiFi, bluetooth 1100mAh battery, 2 colors(black and silver) and possibly Windows Mobile 6.1 OS, anything but 3G.
Here are the spy shots of HTC Shadow 2, at least they seem to be: