It is impossible for eth to exceed btc. Both are the mainstream cryptocurrencies. The current price of ETH will not exceed BTC, and the total market value will not. If ETH wants to exceed BTC, it will be a big volatility that will subvert history. It is unlikely to happen, almost impossible.
In my opinion, nothing is impossible in crypto itself, because we don't know for the long term how the development of eth itself will be, when the price of bitcoin is very expensive and maybe people will feel unable to buy bitcoin and the closest solution is eth and maybe at that point. this eth will be more and more popular and the price will continue to increase, and this is my personal opinion