Well..I was watching X games classix, when a different guy took the Gold Medal in best trick. (Can't remember his name, he rode a YZ and this was in 2004-05.) But as of now, it all depends...No one can really call it.
I would be really excited to see what he is working on next. Is there a site where I can go to..maybe a blog or something of Travis'? Just to keep his fans knowing what he's working on.
I highly doubt there's any limits to the evolution. One thing that amazed me was, a picture in RacerX. Supposedly some guy tried to jump the fountains, (can't remember the location), and he ended up in an ambulance. Then the picture was of a guy doing a backflip over the fountains. That just shows pure evolution..The first backflip on a dirtbike wasn't too long ago, now a double backflip already. I think that pretty much says it all. There will be so many crazy tricks invented, it'll be hard to keep up with today's freestyle mx. Just my opinion.