I would also prefer something different than the typical fantasy sterotype kung fu monk in 'tolkein' medieval fantasy worlds. I mean if this was Jade Empire it would be different.
I really like the hospitilar or flagellant idea, the zealot. I guess the same themes run through all monk archtypes with immunity to mind effects and some limited pain resistence because of training, extreme beliefs and in case of of a flagellant, self multitation for penance.
Flagellants in history was popular and was supressed in many places by various churches. Hell maybe you could turn it into a pet class with a twist. Maybe a raise followers ability )
Rogues have had charm, warriors threaten/intimidate, maybe our zealot could have some political skills, convert etc.
Lot of material for a flagellant, lots of options. Be really nice to have something different for the monk.