Here is my theory.
First there are elements from last years game, specifically the towers in town picture.
The robot in the picture looks somewhat generic, so no real clue there, but to me the biggest hint is the crowd scene where the blimp it taking off. My theory therefore is that the competition will involve compressing/building 'steam' and once the target it reached a flag is waved (see crowd scene on left) and a blimp is launched (floating balloon?), perhaps points for height achieved.
I fantasized that we could use drones and have them launch off the robot, but that i think is a bit much for some of the venues to support ie. multiple flying bits!!!
Just my observation so far.
Mike #5115
Knight Riders