Recent news out of North Korea has triggered speculation about the country's future and Kim Jong Un 's plans for succession, with his sister gaining more formal power while his young daughter gains more media exposure. Kim Yo Jong , the sister of the current leader, was promoted to the ministerial-level position of party director at the Ninth Congress of North Korea's ruling Workers' Party , state-run Korean Central News Agency (KCNA) reported last week. She was also nominated as a candidate