Someone should design and market a Harry Potter style World of Warcraft (MMORPG). A player could become a wizard by going through a school like Hogwarts or Durmstrang and then wander through the HP world. You could learn about the Dark Arts and go bad. I see huge potential for this. Lots of winners here. A video game company would make billions. JK Rowling could add another royalty revenue stream. HP nerds everywhere would rejoice.
Update: Corrected that typo.