I'm having a hard time seeing any kind of positive outcome even being possible. Japan will essentially be a third world company, and the entire world will be living with the effects for quite some time. I don't even want to consider the global economy right now.
I don't believe Japan will become a third world country. Hard hit, yes, but Tokyo is still functioning, as are other parts of Japan.
Analogy... If our west coast had the same problems, would we say we would be a third world country?