Kim Jong Un is a fat little coward as tar as his person is concerned. He’s not about to commit suicide. Look for more ego building posturing and not much else. Even though NK probably now has a nuclear capability to really put us and others through calamitous destruction.
I’ve said this, too. Right now, lil Kim is fat and happy, and probably has no health problems, so he isn’t prone to suicide. But all the while, his scientists are working to build better, bigger bombs and better delivery systems. And then what if he falls ill, or simply decides he is getting old and doesn’t care if he goes out with a bang, as long as he takes a large chunk of the rest of the world with him? There is no easy answer, and several administrations have just ignored it.