I don't think Sun has sufficient mass to generate a supernova event at this point. Sun's demise won't be so dramatic. It may go the way of the red giant, expanding one last time in some futile attempt to draw some last attention to itself, only to have most of its remaining mass evaporate away. Left behind will be a tiny chunk of a company with no significant output, just a mass of intellectual property. What happens to this IP portfolio will be of interest.