In my personal opinion, it will grow but only grow when there is a perfect technology, practical application for everyone.
As the world moves to new heights, cryptocurrency is not eliminated or replaced.
Now the crypto currency is our future and the developers of each of the coins try to make it more perfect and productive. Even there are attempts to link the crypt with the currency of the country so that it can be adopted more quickly at the state level. The main thing in this process is time.