I think that recent developments, especially the shared Winter Olympics and the summit meeting between North and South Korea, are really good news. I hope that they can keep up the momentum.
It could still be a problem that North Korea does not have a democracy even by China's standards. I do sometimes feel somewhat sorry for Kim Jong-Un, though. Dictators don't always have as much real power as outsiders think. It seemed to me that he may have been a young man who did not ask for total power but felt that he dared not dismount the tiger.
Still, good news is good news. There is no room for complacency, though. Three years after the Berlin Olympics, and less than a year after the summit in which Neville Chamberlain announced "peace in our time", WW2 began.