I've got a bunch of ideas floating in my head to correspond to that stuff. If that Combat Flair thingummy I'm working on in my stupid prototype works, for example, I was thinking one of the abilities for a Firebender would be to Attack of Opportunity with a bend against anyone who moves in your immediate area.

Also, random thought for Earthbenders and Waterbenders, modeling their golem after a limited selection of traits for Astral Constructs - yes/no?