If ever Ethereum can surpass it will take years and serious investors moving their funds and shifting to Ethereum. And I don't think that they will do that. They become rich because they are not dumb.

Look at Ripple, they said that they will overtook bitcoin, but what happened? When it reaches top price, investors suddenly dumping it and take the profit and invest on other coins like bitcoin and Ethereum. It could be Ethereum vs other altcoins.