Very good question, Nothing will ever beat Ethereum blockchain, it is very unlikely that this will happen even very difficult to happen, many competitors of this blockchain, but what happens Ethereum is still in the second position.

People know that in the past many of these competing Blockchains appeared and where they disappeared, of course they died and have become trash blockchains, now the new and good Blockhain Projects they may get hype but they won't get to a beating position Ethereum, I believe Ethereum will stay where it is and will always live among the other Altcoins and will remain around as long as cryptocurrencies exist.

Even though now we see that the market is in red or experiencing a bad market, of course Ethereum will still be alive, and of course sooner or later it will experience a greening period or a recovery period like all expectations of people in the cryptocurueency world,