Damn. That would be the greatest thing for me. I would be waiting for that moment. And i f that comes, i will wait until he gets to sell everything. Because obviously, he won't be able to sell it all in one push. So with the first big sell, people will start to panic and sell more since they think that satoshi will sell more. And then by the time he finishes, a lot has already sold their possessions. And this would mean huge bitcoin drops plus the increase in the number of bitcoins available, more drastic drops. And that would be the second life of bitcoin. And from ashes it will rise again, slowly and surely. And might even become better having its founder (s) back in the game to improve it more and kick the asses of bitcoin wannabe coins.
Personally i believe it will happen one day, obviously not now, Perhaps 5 to 10 years, or when Bitcoin becomes main stream.