The North Korean situation makes much more sense when seen from the perspective of a film director performing a social experiment. Film makers, directors, actors, screen writers—they love to do good "real life" research. If one was making a movie simulating culture in a story such as Orwell's 1984, North Korea would be a perfect laboratory.
Looking at North Korea through this lens, some predictions could be made. What outside forces and events would be necessary to watch a "hermit kingdom" implode?
Another perspective could be from, say, China's view. China rightly fears that it is surrounded by US allies—Vietnam, Japan, Taiwan... India is a "frenemy" of the US, but more of an "enemi-friend" from China's view. Then, there is Korea. If the North were provoked to invade the South, that would be "plus one" ally for China and "minus one" ally for the United States, at least on China's border. "Gain more land to win the war" is an old school strategy from Westpoint, a strategy that Grant had to put aside at Gettysburg.
So, the jockeying in the West Pacific could be more predictable by thinking of international policy for North Korea as Film Maker vs Westpoint China. One set of policies wants the North to be easily provoked into decimating the South to win a land war in Asia. The other set of policies initiates "outside force" to carefully study an implosion of the North—and that includes allowing the North to be provoked, but on a controlled terms.
This week, North Korea made even more threats. So, the theorem of Film Maker vs Westpoint China can be put to the test in weeks to come, watching international policies provoke the North to attack and pressure the North to implode. While that transpires, international support from common folk to see North Korea's dynasty come to an end only grows, and the international press certainly doesn't do anything to shift sentiment the other direction.