Does anyone on here think that there is ever going to be Bitcoin Bank, be it something which is centralized or something which isn't really doesn't matter. But I'd think of this as a company, or a union (like one of those credit union banks) where loans would be given out to people with trust, money is held, and so on and so forth.
I know many think that they can escape banks, but they are insanely helpful and trustworthy for many everyday people who we'd want to join into the BTC community.
I believe that in the future there will be a bitcoin bank, you can see that bitcoin is now linked with many banks around the world and the rationale has strongly promoted the closer approach of bitcoin for human life. So the bitcoin bank was born as a necessity of the development of society. Bitcoin will be our future currency.