Given how long South Park has been running, there's a lot of great stuff to draw upon for the game.

How about a massive community co-op event where all the New Kids in South Park have to come together to take on all the New Kids from Middle Park? Everybody is battling not just to climb leaderboards but also to unlock community goals (cards, mats, outfits). Something to spice this game up a bit while we all wait for those balancing issues to get sorted out (ha ha). I haven't jumped much into the game design yet, but let me know your thoughts about what you'd dream up.