In every business it's the same. When new technology comes up the existing businesses will evolve or die. And obviously new businesses will also rise strong.
Same happened with mp3 and music industry...
I agree, as technology evolve some business may become obsolete and same goes to banks that is why some business for example Visa is starting to adopt to cryptocurrency and they try to incorporate it with their services for them to survive once the technology will be embraced by most people in the world.