I agree that it's the standard "don't anticipate" warning. In spite of my joking above (which I fear may have been taken too seriously), ya never know what will come out of GDC. Maybe a climbing or a hanging game, maybe ramps or floor bumps, maybe another race game like 2008. Maybe not real water, but change of surface -- your robot can be on one surface or the other. Like either you're a ramp-bot or not.
And if you think about it -- all the games have been simple (well, all the ones I've seen for the past couple of years). There have been "add-ons" that make parts of the game more difficult, as well as simpler alternates for letting everyone get to play.
They actually used corn in the "Maize Craze"? When I saw Andy Baker's
old video of a match I was wondering what was all over the floor. Then it hit me -- maize -- corn.
Corn?!? Wow -- how did the robots perform with all that corn in the gears?