I don't think there will ever be coin that can replace Bitcoin. Bitcoin is a coin that is generally making waves in any organization or firm that accepts crypto as a means of payment. The total supply is not much and it has the greatest volume.
Today, only BTC showing some progress, though Ethereum been a good potential platform as well as Ripple, but Bitcoin still have it's position. As we see today that after the long bear and dump, bitcoin was able to sustain and recover from a huge long dump that happen. Ripple and ETH might take long to recover.