I think this is possible in the near future (2-5 years) when bitcoin will be recognized officially as digital asset by governments and financial institutions. When it will happen, most probably crypto banks will join the banking or conventional banks will open crypto divisions specializing on banking services in crypto assets including crypto deposits.
if that happens, I think it will get considerable support for bitcoin customers. and certainly increasingly becoming popular. I hope that cooperation soon begins as soon as possible. no need to wait a long time. 