Although the ADA looks really good, it’s too early to replace ETH. There are so many projects that say such things, but no one has ever done it. This is a fact. Therefore, we don't have to think that anyone can replace ETH in a few years, which is unrealistic. ADA, EOS, NEO or more coins, there is still a long way to go from Ethereum. I hope we can still see them after a few years.