So I watched the new episode of South Park tonight..?

Okay I don't get what the he ll their doing. Is the show going to end in the fall?, or is this just a lie? Are they going to make another episode at the ending of the season about the show that they made tonight? Is Stan out of South Park for good? Im sure someone know's whats actually going on with South Park, I heard that south park wont go off air until 2013, but may they ran out of ideas, idk..