All I saw was a new program claiming he's having issues 'walking'. 

Odd's are there's something far more serious at play, but I wouldn't get excited about him dying quite yet.
But if he does die and North Korea enters a power play, it might be smart to Annex/Free the nation from dictator rule. Join them up with South Korea again and just have a free Korea overall like the South has been enjoying for a while now.