I was a summoned piece for cosplay chess last year... which was chaos among the pieces. Since none of the pieces had communicated how they want to be attacked/defeated beforehand, a lot of cool scenarios went straight out the window.
I read the feedback thread for last year's chess in the forums, and someone had a brilliant idea. If there could be a mandatory panel solely for the purpose of the chess pieces communicating how they want to attack/be defeated before the actual match, a lot of cool things could be collaborated on.
I haven't applied for this panel, though; I'm hoping to get some opinions first.