What about something similar to how the Kensai from CW can improve his unarmed attacks by expending XP. Could be related to meditation for a flavor perspective. Although, I am not a fan of elemental damage. Certain other properties could be included for effect. Was it Lord Shin from "Fist of the North Star" that would seem to have the keen ability. Maybe wounding? Fire, frost...no. As much as I like the shocking fist from "The Last Dragon", I do not agree with shocking fist. I believe most effects need to be qi-based similar to Iron Fist from the Marvel Universe. I like the glowing fist from qi knocking the heck out of stuff and letting others be surprised by the unarmed guy.
I also like the concept of blinding, deafening, etc. Very meridian-based and still in line with qi-based powers.
I do have to disagree with the weapons doing open-hand damage. As a wannabe martial-artist myself, I know how dangerous they can be with a staff or spear. No matter how well they use the weapons they still use them exactly the same way as the fighter. My idea of open-hand damage is that it is specific skill/knowledge of placement instead of strength/qi that does the damage and cannot be transferred thru a weapon.
I know there has been some reference (hard to remember in a thread this long) to enabling monks to move and make a full attack (maybe by expending a qi point). What about ignoring AOO when entering? I have always thought that someone that moves 90ft should be able to close before the opponent can react. Similar to how some martial-art masters all of a sudden appear and tap someone on the shoulder. Or in the Anne Rice movies how the vampires just move at a different speed than humans.
I love the monk and the thread. Thanks for all the good work.