Duos and 4v4 ranked would amp up the gameplay and make it worthwhile, rewards could be earned as you reach higher ranks. Such rewards would include eggs, skins, cookies and avatars. These thing would take the game to a new level.
Map ideas would include a wrestling ring like off of WWE, a hell in the cell map, a map in a amusement park, a dog park map. and last but not least a map with a creator mode setting.