I think in the future, banks will dissappear, Wallet online Blockchain or Coinbase will replace Banks, we can look forward to a world in the use of virtual currency and transaction technology of Blockchain, Banks not suitable for future
It's fine that you are a 100% bitcoin enthusiast but you should never be blinded by some facts in the reality. Take my word it will never happen.
Rather than replacing, why just let the blockchain technology be added to give comfortability in financial transaction today? Two heads are better than one.