Specifically Drunken Style!
There are SO many possibilities on martial arts styles that can be plugged into the enhancement system, it would allow a lot of unique-ness in the monk class, and make a lot of people happy I would imagine.
Any other Styles?
Thai?
Ninjitsu?
Sumo?
Grappling?
Judo?
I know, some of them would require new animations and new coding to achieve, but there has to be some that can be more easily implemented.
Honestly though, I just want to be a Drunken (Dwarven) Style Monk