Mary, from FOX News, in an article by Roger Friedman on March 20, he wrote, "My sources say that someone quit it for him." He also writes, "Contrary to news reports, the great writer, singer and musician suffered a stroke on Jan. 17. At the time it was said that he was hospitalized and suffering from exhaustion."

I don't know about that, because he did communicate with South Park's producers.

***The following may contain spoilers***






If these producers are waiting for more ideas from me...
I forsee Chef and Cartman having an epic battle with light-farts and cool (but appropriate) sound effects. Carman will win, but only because Chef forgets he's in that suit and accidentally blows himself up. Now, there are two possiblilities: 1)Cartman rips off Chef's helmet and the duct taped-together character reveals he's Cartman's father, or 2) Stan cries out, "You killed Chef, you bastard!" (which I half expected anyway.