First, we will need to see what ethereum will be after the introduction of improvements to Ethereum 2.0. This will be another coin with new features. However, even if tether overtakes ethereum in terms of capitalization, it will mean almost nothing and will not change anything in the world of cryptocurrencies. Tether is not a full-fledged cryptocurrency, it is just a digitized dollar, its counterpart in the world of cryptocurrencies. They do not compete with each other.