Right now each and everything is connected with internet and technology. The future of banking might happen through blockchain technology and bitcoin in mass adoption. By that time what will happen with the banking process if there happens a termination of internet connectivity for few days time.
We choose the banks to delivers what we need and when we need it. The fact is, most digital banks will be much more efficient due to internet so if internet is gone then expect the delay of all of your urgent bank transactions as you cannot have access to online banking if you don’t have an internet connection.