Adding Another Permanent Game Mode

I believe it's time for another permanent mode to be released, even if it's not balanced. Too say Urf, one for all, doom bots, ascension, etc shouldnt be a permanent game mode because of how they're broken is ridiculous considering ARAM.. These modes are still fun and huge majorities would like to them everyday, I know this because science..

Now personally I would love to see a multi-team mode but I think we would have to see that as a 2015 game mode first and then balanced from there(trial/error/fix). I really need a better drawing of it but I just don't have the artistic ability lol, this is just the basic idea of the map layout. *subject to serious change

IF we had an option to add a game mode to the permanent que what would you want it to be?