I'm already seeing my own personal bank being affected by online banking in general, the location near my house shut down. With how much cryptocurrency has been booming I can see banks ceasing to exist in the future. Maybe not too soon, but I'm thinking more along the lines of 20 years. Though if this is the case, I have a feeling that cryptocurrency will be more easily tractable, and thus if banks are still around in the future they'll just control cryptocurrency.