i think Bitcoin can be exchanged at the bank all depends on government regulations, and when Bitcoin is used more by merchants, the government will not stop trying to accept Bitcoin, because Bitcoin can make the country increase its revenue from Bitcoin Tax, I'm sure the government will not be silent because of the future bitcoin is getting better and It is totally unpredictable.We can't even imagine what will be the market value and scope of bitcoin in next month.But we can surely say that bitcoin will defiantely improve and rise high in coming year