One possible way to expand upon this idea, is to have a "reality" series that is similar to that of The Ultimate Fighter on Spike TV; contestants living in a house for a few weeks, training and going through different Sasuke-style challenges each week. The reward for winning the series could be up for debate, but I'd assume a guaranteed spot in the competition at the very least.
Anyway, this is just something that popped in my head at last minute when reading this thread.
As most of you know, that's pretty much exactly what happened in ANW2.
Just an observation. Thought it was a little creepy.