Rob Sheffield has a good article over in Rolling Stone about Jon Stewart's abdication.
I wonder if anyone at, say, HBO went to Stewart with a moving van full of cash and said, "Do an hour a month for us. No commercials. No bleeps when you say the "f" word. Total and complete creative control. You can make your segments twice as long as John Oliver if you want." I have a feeling someone did and I'm curious as to what he has in mind for his future that would cause him to turn it down.
I don't think as Sheffield seems to that it's just stand-up. I think stand-up is something Stewart wants to get back to and keep current in his life while also doing some "A" project that may still be in its formative stages. I hope there is something and I hope it isn't long before we get it.