Zaire was already dead from the late 80s and the situation became worser because of the lootings of 1991, 1992 and the Zaire currency not having any value (having bills of 1 miljon Zaire) and politicans creating more inflation by more printing money (not having learned what happened in the Weimar Republic). The economy was the death. The education was also death (Mobutu closing the universities multiple times because of them protesting against him). The unemployment being high. The army being death and those coming from the Equateur-region getting the most favour in the army, especially those from the Ngbandi-tribe. Creating a monarchy wouldn't work, nobody of his children was prepared. I think that someone in the army of the same tribe or someone like Honore Ngbanda(who was at that time called the Terminator) would have replaced Mobutu. His son Niwa Mobutu could replace him died, but he died in 1994 because of AIDS.