Media reports said that 31-year-old Kim Jo Un's youngest sister, 27-year-old Kim Yo Jong, who is said to have direct access to him, out of his seven siblings (from four different mothers), may be 'temporarily' calling the shots, during his mysterious disappearance.
Both Kim and his sister have studied in same Swiss boarding school.
One of the North Korean defector told CNN that Kim Jong Un, who succeeded his father Kim Jong-Il after his death in 2011,
'was not in control'.
As the health-related reports like suffering from diabetes, gout, ankle problems, etc, spread earlier this month, the North Korean delegation denied the speculations of him being ill.
Another CNN report claimed that the leader may be going through emotional and mental problems like paranoia, narcissism and attraction to violence.
North Korea's Communist Party was founded on October 10, so, on Friday, if Kim Jong Un fails to appear in public, then, more speculations regarding his disappearance may come to surface.
Kim Jong Un's last public appearance on September 3, when he attended a concert with his wife. He also went absent for two weeks in 2012 and returned to public life without any explanation.
His wife also went out of public glare that year and while it was speculated that the couple had a problem, it was later thought pregnancy might have been the reason.
Theories of power struggle surfaced over Kim's latest absence particularly after he got his uncle and his entire family executed to kill any attempt of a coup.