[Taylor]

You do understand that members of the GDC do patrol the CD fora, check out game design ideas, and are rather careful not to use an exact idea already posted here.
That being said....
FLL and FTC have done a science/technology theme for a while now. I haven't seen this from FRC yet - at least not the whole game (I know the hybrid mode was supposed to allude to the Mars expedition). I think FRC will be thematic and topical. Perhaps highlighting environmental concerns (game pieces could be aluminum cans, plastic bottles, magazines, etc), perhaps incorporating more obstacles a la the FTC game.
Personally, I'd like to see a politically themed game - we'd call our robot Hanging Chad.