ETH is a great platform when every project is rooted in the ERC20 platform, but to surpass BTC is probably a long way, no matter how strong the demand for that platform is. , because simply BTC is the king of the crypto market.
it's will surpass but only the volume not the price itself in the market , and it all depends on the situation in my personal opinion. For example on this current situation wherein there's a lot of issue about bitcoin so there's a tends it will always decrease the value and volume but the fact that bitcoin still very optimistic, its enough reason that no can surpass in it no matter what happen in the market.. Indeed there's a big differential so its really impossible to happen even in the future..