One of our anonymous readers left a comment into the previous related posted, giving news about a new video, where Stuart Miles from Pocket-lint took a closer look at NXT 2.0 while it was at Toy Fair 2009 (UK). Thanks!
From a small glimpse, we can clearly see the color sensor is something different and newer than the HiTechnic MS1038 Color Sensor, which before I guessed to be included.
So lets expect that previous comment from Alexandre becomes true, and that this new sensor may distinguish brightness levels besides colour and this way could replace the NXT 1.0's light sensor.
From this video we may also see how the PC/MAC NXT software allows to remotely control robots actions from the keyboard.
In the background, for several moments, we can see the new Alpha Rex walking. It looks like the new design with the legs motors upside-down (if compared with the first Alpha Rex on 8527) turned to be more effective and contributing to smother and more natural movements.
Starting at around second 35'', we can see some boxes of the new TECHNIC sets in the background. The 8263 (Pisten Bully) and 8265 (Wheel Loader).
Unfortunately it wasn't still this time, that we got newer images nor videos from these.
Maybe after the Toy Fair in Nuremberg, starting tomorrow.