I don’t see any other cryptos replacing bitcoin. Most other cryptos have t found their purpose yet, even those with solid use cases. Sure there will be cryptos which are better at many things and that may see greater adoption in different areas but that does t necessarily mean btc will die.
We need to get past this era of speculation where cryptos are used as people think they can make money from them, and allow them to reach their full potential in the many areas they can add value.