The way I see it, until the bitcoin infrastructure (as well as stability of the price) is ripe for the average person / mainstream adoption, it will end up filling niches like this where it already excels. At the very least, I see money transfer services like Western Union being replaced by bitcoin in the near term, near-to-long term I definitely think it'd be interesting to see it replace the wire transfer. Banks would have a lot to gain and not much to lose by incorporating it