Please give us a TRUE martial artist champ.
We need an actual martial artist. Sure, we have Lee Sin and Udyr, but I can't help but feel they don't actually count. Their abilities and some auto attacks are just too strange to take seriously. Lee Sin is throwing balls of sound that somehow deal damage then using it for echolocation like a bat is silly, and slapping the ground to make a shockwave is just as ridiculous. Somehow, he is able to develop a shield for an ally just by dashing to them. The only skill Lee sin actually has that even resembles a actual martial arts attack is his ult. Udyr on the other hand is more or less just a spirit channeler, using mystical spirits rather than the use of technique or personal ability. None of his attacks even slightly remind me of martial arts.
This isn't to say they aren't close, they just seem too far fetched and most of their movements don't resemble actual martial arts at all. The fact that we have a Muay Thai Lee Sin skin makes me really pleased as a martial artist.
One way to do this is to make this new martial artist like a fighting game character, more so than Riven. Give us a reversal of some kind (not a parry, but it would be used like it), a single gap closer (A punch like Makoto's "Hayate" from street fighter or Ragna's "Hell's Fang" from Blazblue?), a sort of zoning ability (This can even be just a attack that extends beyond the normal auto attack range and knocks back on hit, rather than a projectile) and some kind of grab (Supress then knockback?) Put this champ in a traditional uniform and vola, you just satisfied my need for martial arts as far as league is concerned.