Expect the unexpected; He has made a lateral move into an entirely different business: The porn industry. I do not think he can possibly offer more than he already has to CS so he will now focus on contribution that will primarily benefit the degenerates among us. I believe I heard Paul Graham stating that he would do this as well when he was done with YC as after all he is a man of the future. It's all about staying ahead and being flexible about business.
As Paul Graham said "If you can find a way to turn dicking around into a profitable activity then by all means do it!" on his speech on him entering the porn industry(will add source later)