If we speaking kinda teoritally.. well, I guess it is possible sometimes.. maybe after all bitcoins would be mined.. and price could be more predictable.. but I'm sure banks will not offer for you very good conditions...
They will earn money for themselves first of all..
Cryptocurrencies have seen extremely volatility but it remains less clear if they pose a threat to financial stability. Central banks of the worlds biggest economy has no policy toward regulation of bitcoin, it is 'worth thinking about' The volume of cryptocurrencies could matter to monetary policy at some point.