As far as I recall, it has been clearly stated that gold pillaging is not returning to regular servers.
That would really trump the suggestion down before it even has the chance to gain any flight.
As funny as the discussion on multies and banks being an even bigger thorn on players' behinds would be, please no more topics that warrant the tear flow. Sanity has limits even on the most gracious of us.
For my personal take, I don't see a need to have such a dedicated building to gold aspect even if it was reinstated.
Just have it work as Ares does.