I suppose that over time, the cryptocurrency should change incredibly and become a permanent means of payment. I hope that it will really replace the existing money now
Actually is it hard to anticipate if bitcoin will have a future becaus this thinhs is unpredictable, in fact there are many happenings may occur instatly just like unexpected pump or dump. But I do believe that it has a bright future though it is impossibe to overtake the fiat, perhaps it can only be as an alternative mode of payment.
I don't think its impossible for cryptocurrency to overtake the fiat currency. I think there is a lot of potential from the blockchain technology and crypto market and its only time that will make the implementational change I mentioned previously.