I have read somewhere many major banks have already started research on block chain technology to implement it to tackle the dangers created by BTC. Banks will adjust their system with BTC and block chain sooner.
Still long way to go my dear friend. Researching is one thing and implementing it in a real is another thing I don't see that banks will have a friendly attitude towards the bitcoin in near future as the Govt will decide whether bank should go with bitcoins or not.