I don't think that far because it looks like the government is looking to legalize crypto in several countries in the world, it's proven because some countries have taken taxes from cryptocurrency production. Even though there are some weaknesses of cryptocurrencies, the existence of a supportive government will cover these shortcomings so that it is possible for cryptocurrencies to last for a long time as a commodity investment asset.,
As long as there's a single country supporting crypto/Blockchain tech, centralized exchanges won't be going anywhere soon. I doubt all of the world's governments will turn against crypto since it brings huge taxation benefits in the long term. Decentralized exchanges are good, but they can't outmatch their centralized counterparts in terms of performance and ease-of-use. They'll only remain as an alternative than a replacement of traditional exchanges.
Ultimately, people will get to decide which type of exchange to use for their own benefit. With how far crypto has gone so far, it seems that centralized exchanges will be here to stay for a long, long time. Just my opinion
