Now the mainstream currency, BTC-ETH, has the upper hand, and they have the strength and technology, but the future is likely to be a new project to replace them more mature and more comprehensive. What do you think it would be?
Technology may always evolve, but Bitcoin will never be replaced by any crypto. Bitcoin is a symbol of success in the crypto industry, and will always be desired because the King in crypto is created by the community, not from the technology.