[joezydeco]

Let's also not forget that North Korea's nuclear weapons facilities were recently damaged in an earthquake.

No, their test facilities were damaged. It was a hole in a mountain used to test their warheads, and the hole in the mountain has collapsed.

NK completely retains the ability to produce and launch warheads if they want.

More than likely NK doesn't need to test their weapons anymore. They're a fully capable nuclear power now and they will be bringing that fact to the negotiating table.