The possibility of his sister, Kim Yo Jong, inheriting power is “more than 90%,” said Cheong Seong-chang, an analyst at the Sejong Institute in South Korea, as reported by the Associated Press. She has “royal blood,” he noted, and “North Korea is like a dynasty.” In recent years she’s also accompanied her brother on high-profile meetings with world leaders including US president Donald Trump, prompting some observers to consider her North Korea’s No. 2 official.