Bring back Hexakill?

This is pretty simple, I want to be able to play Hexakill because I never did. When i was playing LoL at the time when Hexakill was out i didnt realize that it was the same rules in summoners rift except as a 6v6, and i was still developing my skills at the time, so i really want to be able to see this game mode again. I think in fact Riot should sell custom game modes to players (as well as make them seasonal promotions, like how free champions are) so players can make custom games and enjoy these game modes when they want to.