1v1 gamemode?

I think it would be cool if rito added a permanent new gamemode into lol, 1v1's. It would be good if you wanted to play a shorter game, but have just as much fun. I'm not sure how it would work but I thought it would be a cool idea maybe riot could create a new map special to the gamemode(maybe even ranked 1v1?) idk im just thinking good idea?