My theme suggestions

  • Musician (Wouldn't necessarily have to have good music in it, but just be about a musician or the music business for instance.)
  • Deception (Trying to find new ways to deceive the player in some fashion could get interesting results.)
  • Leave out one element of game design (Can you design a game without graphics, sound, story, or some other element? Especially if the lack of the element adds some unique gameplay challenge. The missing element should probably feel important to the game, such as leaving out music in a rhythm game, or leaving out story in an RPG.)