Was it South Park (as in Matt Stone and Trey Parker + studio) proper or was it Paramount and/or Comedy Central?
Seems like a very likely move that the studios pulled it. It seems unlike Matt and Trey to pull an episode, even as drastic as the situation is (don't know that anything comparable that could be attributed to them has happened in the shows history - open to being corrected if I'm wrong on that).
If they can make it happen while making them engaging and compelling to work with, I'm down with this.
I'm not going to hold my breathe on it being a "fun" faction to work with, but I'm open to them attempting to do the thing.