I would be watching Japan very closely going forward...as well as the US, Europe and China (China has there own property bubble/debt crisis that they're dealing with at the moment)
Here is why you should be watching Japan closely in relation to a global financial crisis...this would in turn effect the US, Europe and China economies.
Watch this video on Kyle Bass who predicted the GFC and Greece financial crisis
This video explains Japan Debt Crisis.
This video on Kyle Bass and Gold
Lecture on Japan Crisis (its long but explains japan very well)
This is a recent Alan Kohler graph in relation to the GDP and Debt of Japan (looks very concerning)