While I think the Kim Family Regime is always receptive to "carrots" it is very unlikely that it will reciprocate. In six decades the north has broken virtually every agreement it has ever entered into. If the north was serious it should honor the 1992 Agreement on Reconciliation, Non-aggression, and Exchanges (ARNE) it made with the Republic of Korea. Let's offer that agreement up as the start point for negotiations since it has already been signed we should implement. I am sure that President Park's policy of "trustpolitik" would support implementation of the agreement and the ROK would surely live up to its part of the agreement. Could we expect north Korea to do the same?
Leading from behind? Let's let north Korea deal with South Korea and have the Koreas take the lead in bringing their civil war to a conclusion. But the ball is in the north's court because every country in the region including Russia, China, Japan, the ROK, and the US have lived up to their ends of agreements until the north broke theirs.