One thing that is certain is that world governments will impose more regulations on cryptos in the future. That implies that the wild gains in the early years of cryptos are likely behind us.
Particularly notable right now is the very low transaction volume of cryptos, including BTC and ETH. While there has been some price recovery, there's very little confidence in crypto as a whole hence the low volumes.
The problem with high exchange fees remains as always. With low transaction volumes, that puts the exchanges themselves at risk.
Cryptotokens are here to stay but the crypto landscape five years from will look vastly different from what it was five years ago. Bitcoin will be a little thicker around the waist, graying sideburns, more wrinkles, etc.