New Game Mode

My friends and I just thought of a new idea for a game mode that sounds incredibly entertaining and would bring a new aspect to the game that hasn't been seen since the creation of URF. Our idea is a three way game, possibly on an altered Summoner's Rift, that would feature same or similar feature of a normal game, except for the fact that it's a three way free-for-all. The one issue that could pop up is a gang up of two teams on one more, but I'm sure Riot could figure out a way to eliminate that issue. I understand that this would be incredibly hard to make with a lot of new elements, such as how you pick champs, but I believe it would be the best featured game mode and my friends and I are incredibly excited for it. Thanks and I hope you guys agree with me!