I think bitcoin is a model to follow and central banks will not be using it as a reserve. Instead the central banks will make their own cryptocurrency that is then distributed to the public but advertised as a backed currency by central banks. At the end of the day, gold will still have a significant value with respect to fiat. The government and banks will use cryptocurrency to distort this thinking and take away average people's wealth.
The reality is cryptocurrency is made up of 0s and 1s so it is nothing really anything tangible to it. However if we all accept it and use it as currency it becomes useful. We need to play down the government's role on crypto and decisively support the cryptos we believe will be here 100 years from now because those coins will be what has a chance of replacing fiat.
The government is slow to react but when they react it may likely ruin the crypto market. Such as global bans, internet network disturbance such as removing the US net neutrality, or simply creating their own crypto that is enforced to the general public as the sole source of legal currency to use.