It is still a possibility. Another way that this "water" could be used in the game can be during autonomous. But not the robot in the water, but the human players.! I know it seems stupid but this is what i think. Since they have introduced Kinect as part of the kit of parts, it is a possibility that the traditional autonomous be changed so the humans are controlling the robot with kinect during the autonomous. The kinect doesnt need a controller, so you wont be ruining any electronic if the human is in the water, then the kinect can just stay outside.

Human in the water tank and kinect outside. (H)Just some thoughts. Probably not going to happen, but still fun to think about.