I think one day it will happen. But untill BTC dominstion is higher than 50%,there is no point to discuss it.
BTC, ETH are the most common crypto currencies right now, so I don't see strong competitors
Actually, for now the benchmark of the market remains in bitcoin. because now Bitcoin is a market driver to be able to advance or not. the effect is large enough for market movements. maybe tomorrow someone can replace it still not for now