Blockchain has done very little to shift economies around, sure a few lower class people got rich but doesn't change the system at its core as more and more billionaires gain mass amounts of power over us with their giant companies.
Never the less, blockchain will be here. You might just get a way to be one of those lower class who got rich.
The future will still be determined by how we will start using using blockchain for good. With all the high tech AIs and sophisticated projects we have today, its not impossible to reach a certain development to help country's economy and cryptocurrencies but blockchain products that might just help production and manufacturing.