That nut-ocracy is not going to want to provoke a desperation attack from South Korea, because if it gets liberated, the ruling family will quickly become the ex-ruling family, at the hands of the liberated Norkies themselves.
I believe that Kim Il Sung and Kim Jong Il have met justice and are paying the price after standing before the God they denied and having to look at the evil they had committed. In this world, though, I would like to see the Kim family suffer their due. Kim Jong Un is no different than his dear daddy. There were some that thought he might be different, but he’s a chip off the old block.