Monk class in Diablo 3 might be satisfying enough. Jade Empire is piece of crap for martial arts element. The only thing I found somewhat close to real martial arts is the Swordmaster class in Warhammer Online, and Warden class in Lord of the Rings Online.
My point exactly. I think RPGs and martial arts are a perfect fit where the player could build and learn new moves and styles and there is a mystical aspect to it as well that could provide the framework for some cool "magical" effects/attacks. But nobody has really ventured to really pull off a great game like this. Given the success of Jade Empire for how mediocre of a game it was, there is clearly a market out there for this.
I'm optimistic that Beth will have some new IP beyond Fallout and TES in the next few years, especially given the licensing agreements with Obsidian and the dramatic increase in developers at Beth for Skyrim (100+ !!). In my mind, Beth is the only company that could really make a kick-ass martial RPG. With the apparant improvement and reimagining of combat in Skyrim, it seems the engine they've created might be able to provide for a more realistic martial arts experience (at least I imagine so).
In any case, one of my recurring dreams is that Beth will create a martial arts RPG of unparalled excellence. Making a game like this could also tide over the TES fans that want spears, throwing knives, and ninja stars and all that back in TES.