Notch isn't developing, but it's ultimately his IP. He's made over $100M in licensing deals on the brand alone. I'm sure he's going to be the shotcaller (if not just a providing a massive influence) for any large-scale potential deals involving it.

Even with that aside, he's a massive figure in the game development community. A lot of people respect him and look up to him for making out huge in the Indie game in industry pretty much of his own accord. His opinion is pivotal.