That project seems like the designers played it safe, using a totally opposite material palette and only relating the old to the new via arrangement. The kiosks, teller desks, etc are beautiful in their own right but the dialogue between old and new seems sorta flat.Oops... didn't notice the quartz and birds-eye maple, which relate nicely to the travertine walls.
It doesn't seem like there was much willingness to explore the wild-and-woolly world of sympathetic additions. Carlo Scarpa is of course the master of this: