I think bitcoin will cost more than$ 50,000 in 10 years. Also, it will no longer be the first cryptocurrency for capitalization. Ethereum will take its place because Ethereum has a working economic model. It's not just" digital gold " like bitcoin.
if bitcoin is currency. it's like a dollar, 90% of the country's currency is based on the dollar ($), because it is the king of fiat currency. bitcoin is also like that. bitcoin is the king of crypto currency. so I guess it will not be replaced. because bitcoin is the pioneer of crypto currency