As far as the regional groups' presentations of their games go, I don't think we'll be finding anything out very soon.
I think it's clear that autonomous will stick around. When the 2003 game was announced, programmers around the US rejoiced. It was a fun (and unpredictible) way to toss the game around a bit.
2001 - balls
2002 - soccer balls
2003 - bins
So I think it's safe to say that we'll have some kind of variable that begins with a 'b'. Bats? Bubbles? Teddy Bears? The world may never know.
All seriousness, I think this needs to be said. The five regional groups that worked on this year's game (another thing to be noted... what if FIRST doesn't pick ANY of their games?) worked hard on what they presented to FIRST. I am sure that this year's game will be a challenge, one more mind boggling and brain testing than the last couple years.
Prepare to be swept away.