As for the title of your thread, by now we already know that Bitcoin plays a big role in finance already, as it become one of the best asset if not the best in the last couple of years and many traditional investors or Wall Streets maybe moving some of their wealth to Bitcoin already.

On traditional banking, still very controversial, there could be banks that are really anti-Bitcoin as they see it as competition or maybe consider it as a scam or fraud. But there are money servicing company that has accepted Bitcoin for now and very friendly. There are still regulatory challenges till now, but it seems that it has died down already as financial watchdogs see their efforts futile as this will be the next technology, cashless society with Bitcoin at the forefront.