i would love to see some Martial Arts done on the show. the reason being, i am a black belt (soon to be 2nd degree) in tae-kwon-do. not only have i seen some of my friends do some really awesome things but i have also done them myself. i mean come on have you ever seen some one do something like a step over turnig behind jumping roundhouse kick? or my favorite, what i call Korean Applesause. basically an apple is placed on the end of a sword and then is blasted off by whatever kick the kicker desires. sometimes it's even done blindfolded. tell me that's not awesome!
Also... if you have ever seen the weapons competition where they sling their weapon around faster than the human eye can see. Even though this is more show than actual fighting ability, this would be cool to catch on the slow-mo cameras. I think it's called Xtreme Martial Arts and there is one kid that is amazing with the katana.