In 2020 my be Ethereum can over take bitcon because supply of ethereum is increasing and if the price also will go above $1000 it will be in top 1, and many investors now days interest invest in ethereum platform, if the bitcoin price continuously higher if price reached above $20k sure bitcoin will continue the king of coin always, no doubt Ethereum is also a very sophisticated crypto currency. Eth is now suffering from a major decline in the past weeks until now where I believe cryptocurrency is undergoing a major adjustment same as btc. The best thing to do right now is to hodl your eth investment until such time the crypto market may able to recover in the coming months