Anything is possible this day and age. To assume is a dangerous thing. There were some who believed North Korea was responsible for the Sony hack but no one has proven that theory. Cyber crime is everywhere though so I do not think that it will be centered in one specific place,
North Korea has become a real threat to the United states and its allies in terms of cyber warfare. They have been investing in hacking and have been behind numerous attempts to hack foreign governments. I believe they feel they cannot win a military conflict or compete in that area but cyber warfare is something that can be taught with relatively low resources.
Somewhat lost in the concerns about North Korea's appalling human rights is the very real threat posed by their Government-sponsored cyber crime and forgery departments. The Cyber crime departments especially are believed to pose a wide spread threat to the rest of the world in such a way that regular security will struggle to negate this problem.
I think North Korea would absolutely love to become a headquarters for cyber crime. However, I don't think this is going to happen. The country is so isolated that they do not have access to the latest technology. Even their country's website is a joke. They don't have the technology they need to be cyber crime experts.