I don't think ETH will ever surpass bitcoin, It might reach a close market cap but it's going to remain under which Bitcoin has.
It will never happen. Eth cannot surpass and overtake bitcoin. It's just that there are too many ETH holders thinking that they can see one day seeing it at top one.
The fee of it is even higher than BTC which was the opposite before. Waiting for the next upgrades that they'll deploy to its network unlike bitcoin, it's been calm and lesser fee these days.