Psyonix had always intended to introduce mutaters, but they initially held off in order to focus on the competitive side of the game. "You have to have a solid, established set of standard rules for you to build an eSport around and leagues around, and what is the true game that people are playing. But at the same time, the vast majority of players are your spectators; they're the people you hope will watch eSports, but they want to play at home, they want to have fun, and they want to mix it up, and they want to Rocket League Keys get the most fun from the game possible. So we wanted to add those in, but we wanted to do so after we had definitely established what the core gameplay was."
While Psyonix doesn't want to accidentally cook their golden goose, it's safe to say that they will go on on tinkering with their formula. In December, they released Wasteland, which is much larger than the standard map; and while it isn't available in ranked play yet, it may eventually make it there, with more maps to follow. Psyonix has grown and changed a great deal over the past few months, but their experimental side remains very much intact.