I would actually really like arena from smite as a game mode.

I was sitting at work and randomly remembered playing smite like 5 years ago and thinking every map they had was pretty bad accept for arena. For those of you who havent played smite the mode is basically a giant open area with jungle buffs on the side. Both teams have a base and a portal outside of the base. one line of minions pushes into the middle of the arena from both portals and both teams clash. 1 kill equals 5 points and 1 minion equals 1 point then you also get some points if you get your minions to the other teams portal. The game is over when one team has taken 500 points from the other team.

I think its a cool concept that riot could expand on easily. It would be a great mode for people who struggle with team fighting. They can get a lot of practice with it.