With the North Korean waves of armament race in 2017-19, noted by the diplomacy of the Trump Administration, de-nuclearization has become a top priority for the Korean peninsula. In the meantime potentials for economic reforms in North Korea, perhaps even to the point of systemic change, are still open issues, as the need to feed people and improve the dismal economic performance remains high on the agenda. What lessons might be learned from the systemic change of Central and Eastern Europe for the context of East Asia? Implications based on International Relation (IR) theory are suggested.