What's up with the Kim?

"North Korea's Supreme Leader/dictator Kim Jong-un has reportedly died, or is on his death bed with no hope for recuperation -- according to media outlets in China and Japan."
...
"President Trump has downplayed the reports and has refused to elaborate -- but it looks like KJU's sister, Kim Yo-jong, might be getting set up to possibly replace him as Supreme Leader ... reports say she was recently re-promoted to a prominent position of power there"

https://www.tmz.com/2020/04/25/north-korea-dictator-kim-jong-un-dead-dies-heart-surgery-reports/

I don't know if these are just rumors...