I for one believe fiat money is not going anywhere at least in the next 50 to 100 years. The monetary policy may change and maybe there's going to be an actual kinda bitcoin-like (but nonpseudonymous) crypto version of fiat money at some point (not technically feasible at the moment but we never know, the scalability issues that affect Bitcoin might someday be solved).

Bitcoin might yet rise an order of magnitude or two, but that's the max. More likely it's never rising above $700 (a number I pulled out of my arse).

Near term I'm bearish. We're seeing a redistribution of the bubble money, virtually no one new is coming aboard. When the bubble fiat runs out, the price is going to collapse.