Dont think it will happen because of its mass scale adoption acros the world and pretty much everyone heard about it.Yes bitcoin have problems with transaction fees and time of it but eth isnt really much better,thing that people are forgeting that btc isnt over with improvment for example lighting network should be up this year for btc
i don't think so too, ETH will going up for sure, but i don't think Ethereum will overtake Bitcoin,
Bitcoin will still in the top of cryptocurrency, but Ethereum is the best for now to invest for a long-term investment.