Simple answer is no, it cannot.
As it stands banks don't see Bitcoin as a threat simply because the technology is still very very far from being able to provide a global solution that rivals their own system in terms of stability and dependability. Why would anyone want Bitcoin to make banks disappear anyway? Bitcoin is not perfect, both Bitcoin and banks have their advantages and disadvantages, it would be a lot more beneficial to everyone if the two coexisted or even merged.

it would seem very far fetch since banks have been there and people are already use to it. btc an never make them disappear.
Banks however can compete with cryptocurrencies as they have now studied how blockchain works, later we'll see which tweak they may have done for online payment technology.

there's no way banks will be disappear. lets see how many people use bank services. if they want to make bank disappear, it's not easy work, they'll probably need a long long time to make it.

Not really ,I don't use bitcoin only because people cannot seize my coins or take it from me saying any bullshit but also because of less fees and ease to transfer money.The governments cannot take control over it anyways.

I think maybe sometime in future when everyone is having their own wallet's and spending with their will.I don't think though.

agree. certainly many people who use the services of the bank. even all human beings on this earth using the services of the bank for their financial management. very difficult to make bank disappear :/