North Korean leader Kim Jong Un will be visiting Seoul. If his visit to South Korea were to be arranged, it will be the first visit by the highest-ranking leader of North Korea to visit Seoul since the ceasefire in 1953.
On Wednesday right after the summit at the reception hall of Baekhwawon, South Korean President Moon Jae-in and Kim Jong Un announced at the Pyongyang Joint Declaration that the North Korean leader decided to visit Seoul in the near future at the invitation of Moon. President Moon explained that the phrase "near future" here means "within this year" unless there is a particular situation. Kim's visit to Seoul is a return visit to President Moon’s visit to Pyongyang this time.
Furthermore, the two leaders will be paying a visit to Mt. Baekdu as part of an event for friendly relationship on Thursday, which is the last day of President Moon’s visit to the North. This is the first time for a South Korean president to visit some place outside Pyongyang not to mention the first time to climb Mt. Baekdu.
Sang-Jun Han firstname.lastname@example.org