Read you opm2010, but an operation starting again to produce bars needs first of all financial backing which means re testing to confirm grades then the diggers and a mill, etc. etc. It takes a few years. In the meantime with the current growing demands on silver it is going to be pushed much higher before then in my view.
Of course there will be a run to the hills to dig everywhere and that is when the mania will start, the sort of mania that will drive the price up even further. Be probably the time we will be selling