I'm thinking "No" to your question.
Pretty good chance of making a complete ass of himself beforehand and during though. He's doing a pretty goo job at that now.
From watching the coverage and documentaries on this over time, most everybody's consensus on Kim Jong-Un is they describe him as a man-child.
My thinking is that deep down a coward that is overly self consumed and will back away from anything that might ultimately harm his own safety and well being.
He knows that most militarized countries in this world could kick his ass off the map, but he's getting his massive insecure ego fed by the media frenzy of standing up to the biggest and baddest, The USA.
And more than anything this has developed because Obamo wouldn't take a hard line with him and put him in his place.
Meanwhile, Trumps approval points have taken a jump since he, his Defense Secretary (Mattis), and Secretary of State (Tillerson) stood up to the soft punk ass "Dick-Tator".