Getting people to use it is the biggest problem now. Everybody who is in now is hodling or trading, but few are actually using it as currency. Regulators who said cryptocurrency is a "stock" have done damage to the currency dimension of this asset which causes it to freeze up and makes it less useful. If crypto is to become established, it should follow the same general course that the weed industry took.
However, the next bull cycle will begin to change this. As more and more people have crypto, more will use it as a medium of exchange. At the same time, the more people pile in, the more stable the price action gets, which decreases volatility. People hate spending when volatility can ruin your purchasing power, but will be more incentivized to spend as it stabilizes.
I'm expecting a return to where we were around spring 2017 by summer 2020 and by early 2021 a parabolic breakout well beyond past all time highs.