it might happen because the bank really hates crypto, so the bank plans it by making new coins to get rid of bitcoin and other crypto, but it must be very difficult for the bank. and I'm sure of that
if they still use the crypto algorithm, they will still be included in the altcoin group, maybe they will form their own caste by trying to create stable coins, but bitcoin will still be the most popular because they cannot separate the volume between bitcoin and break down into their coins .