I bet bitcoin can because there is many bitcoin user now. And once many nations accept bitcoins
it is possible to make banks disappear. Because it has fast transactions and more secured and because technology becomes
more modern now it can easily fit in the modern world and it can use in different ways in the internet.
Yes when the user base of bitcoin keeps on growing and the requirement for Internet money usage makes more demand, then there are more possibilities for bitcoin to make Banks disappear.
Yes worldwide most people and many countries already started to adopt bitcoin payments instead of their bank uses. The main reason for this, bitcoin has all the features required for more and demand like fast and secured transactions.