I think Luna, Avax, Cosmos are bringing competition and functional development like Ethereum. Trends and demand responses in crypto change very quickly for the development of strong capital flows from first-advisory trust. But I think ETH will still deserve to be the king of altcoins for many more years when ETH 2.0 becomes the main strength.
ETH is still unbeatable by other altcoins even though ETH 2.0 is still a long way to go for a lot of people to see because until now there are still a lot of people willing to trade with ETH even though it's also not bad to have to choose Luna, Avax, and Cosmos because they too compete well in the crypto space.