Kim Jong Un will seek an open, peaceful relationship with the world. This will cause the military to rise up against him, and he will ask South Korea's government to come to his aid. A war will ensue - S. Korea and Kim Jong Un versus N. Korea's military. The North Korean people will be divided about which side to support. Eventually the N. Korean army will be defeated, and Korea will be reunified. Kim Jong Un will be hailed as a hero and will eventually be elected President of Korea.
Okay, really I have no idea what will happen. The above just seems like an interesting possibility.
