No, I do not believe that. We must admit that what has allowed banks to acquire so much economic power is their ability to understand where capital is, and make the necessary efforts to keep it.
Knowing that banks will never fight against capital, what I see today is a growing interest of banks to incorporate blockchain technologies into their processes, and because of their marked interest in taking over everyone's money, it would not be strange that in the near future we will see banks willing to accept cryptocurrencies to carry out financial transactions.
Well in the first place banks and crypto currency has the same in some purpose like stroring and investing money. In the market or as a competition in business you must take down your opponent by your advantage but the scenario of banks and crypto, crypto slightly introducing itself to the market but as what it takes to be banks suddenly opposing to it to stay in the society.