I believe that ETH will reclaim it's glory back once gas fee issue is solved, there is also a big difference between BSC and ETH that will still make many prefers ETH, that's the fact that BSC is Centralized and ETH isn't.
I disagree, eth will never be.. There's a lot of token today are using ethreum smart contract thousands of token can you imagine that load, because in my opinion they never prepare for this situation. BSC is very promising because they already anticipated the ETH problem.