Don't worry. It's not going to happen anytime sooner or later. One way he can get into the power again is thro the military coup but that ain't gonna last longer. Also don't think he would take such risk at this age. Another option is through the election where he and his party would possibly get few seats. Now it's too late . It's nepal ill fate that she got monarchs and leaders who have patriotism only in words but not in deeds. The problem also prevails on people mentality to vote candidates from one of the big party. Still there is a large number of population who don't know whom to vote for. They can be easily lured thro few hundred bucks to vote for anyone. Only big parties can expense like that as they are backed by business individuals.
The only way a society can prosper is through the wisdom. For that one needs to gain acceptable knowledge about right and wrong . It's a long way to create a society like that in the context of Nepal so for now we have to live with these leaders and their decisions and corruptions and pollutions and etc etc.
For me personally ppl like Gyane is no better than shere or oli or prachandey.