I think the Banks will never die. it will just improve and maybe adapt the blockchain technology in their system. Banks will always find a ways to innovate and maybe we'll see that cryptocurrency and Banks will work together.
Traditional banks will exist always, and soon many of the crypto banks will appear. People think that their money can be in safety if they are held in these institutions.
well, of course they will still be popular. in the general public, of course the bank has always been the safest, and best, money store. so, I think that banks will always remain in use, even though cryptocurrency is becoming very popular.