This is base less and I don't think any altcoins will replace bitcoin. The market collapse already and we are still in a bear market, if you think some coins will replace bitcoin then maybe it will took decades before it happens. I understand that the price of ETH falls below our expectation, and that can really be the bad price for this kind of situation but I know ETH will survive on this one, as well as bitcoin. The future of altcoins is still good, and no need to replace bitcoin on top.