As long as the reputation of Binance (exchanges) is good and still become the top exchanges of Centralized exchanges, Binance coin could replace Ethereum.
But we can't deny the fact if Centralized exhanges always have been targeted of hacker and each year there at least 1 exchanges will be hacked, Binance ever got hacked once on 2019.
So, be aware if Binance will get hacked in the future... the coin value will got affected too.
Binance's reputation is very good so it is certain that if it continues like this BNB will catch up with ETH in the future,
but by the time eth version 2 has been released we will see more demand to which platform ETH or BNB is new from
there we will see who will control market.
Are u a developer and have you heard from developers using the Binance chain? The gas fee still look attractive but according some assessment I read, it could be describe as hardfork of ethereum and it is only providing a temporary solution. Binance is smart enough to promote the chain in times like this when ethereum users are frustrated about the high gas fee but we dont know as some know the defects of the binance chain.