It seems to me that these are vain hopes that banks will one day disappear. Even if they do not exist physically and they do not have offices and real estate in which they are now, they will continue to exist virtually. In the form of portals or in the form of interactive decentralized services. I think it will be that way.
It will never stop, it will go all the way. No doubt that it will continue improving and developing itself technologically following trends and upgrades that are needed to the currencies, securities needed, and services to make the transactions way faster and better. This is the reason why I don't think we will be seeing bitcoin as the main currency or a global currency.