I like it... but i cant see SE sending the devs to work all that out just for a singular event. This is a bit of a tangent but...

Maybe they could make a mini-game where you collect/craft little figurines of players. Then approach a npc for a retro ff style battle of wits explained as a board game or something like that kinda like how parley works right now. The abilities the figurines are given to use could be selected or depend on the quality of the figure or the rank of the player used to make it.