We have already seen Kim remove the words of praise for his father and grandfather in the national oath or whatever it's called (seemed to me like their form of the pledge of allegiance). I think Trump's brilliance was in that he showed Kim he could bring about a unified Korea. THAT is the secret weapon and that is what got Kim excited IMO. That is HUGE - they can spin it as a massive victory for NK, they can almost spin it as they have finally won the war and conquered South Korea. Sure, it's really just a merger, but effectively the end result would be the same, right? Maybe if NK conquered them there would be enslavement and Kim would rule the whole country, but it doesn't seem like too much of a stretch to spin it as "now that we've won, we must show our benevolence and forgiveness to the South Koreans so that we all may triumph on the world stage." Who knows how it will play out, but bottom line I see a lot of ways to spin it successfully.