no bank are accepting BTC right now because it means BTC is a recognised currency hence, regulated (taxes and so on); hopefully it will not happen soon because that might be one nail on the BTC coffin.
Maybe sometime in the future BTC will raise his voice and will be widely recognised but for now, is not a good idea.
I am agree with that no any bank is accepting bitcoin now. I dont think so that banks will accept bitcoin future because bitcoin features and banking system are against each other they cannot run with each other. Exchanging bitcoin into fiat through some blockchain doesnt mean that banks are accepting bitcoin.
Banks accept only centralized currencies which will under control of bank and bitcoin is totally decentralized currency but banks can play a roll of blockchain for bitcoin.