The need for a Governor-General, for want of a better title, would depend on what duties the Scottish constitution assigns to the Queen. Unfortunately the
draft constitution of Scotland is a bit vague on the subject. Section 9 is on the Head of State, who is to be the Queen. It is obviously written in such a way to make it easier to remove the monarch at a later stage. The draft vests sovereignty in the people of Scotland, not the Queen, sorry, the Head of State; and executive power is vested in the government. If the final version provides for a ceremonial Head of State there may not be any need for a full-time vice-regal presence in Edinburgh. After all, Scotland didn’t have one from 1603 to 1707.
During that century prior to the Act of Union, the day-to-day government of Scotland was left in the hands of the Privy Council in Edinburgh. When parliament met a
Royal Commissioner represented the king. Could a Royal Commissioner make a comeback? I doubt it. The draft constitution places the stress on the title Head of State, not Queen or King, so I think it’s unlikely an ancient office of state would be revived. For much the same reason, I doubt that the title Governor-General would be given to the representative, if one were ever needed, of the Head of State. I just hope the referendum fails so that the Queen is not dragged into the vagaries of Section 9 of the draft constitution.
P.S. Iluvbertie, Dame Marie Bashir moved into
Government House a few years ago. Mr Carr’s attempts to downgrade and undermine the office of Governor did not work after all. It was all very well for the Governor to remain in their own home, but it only really worked if the Governor's home was in Sydney. No doubt Dame Marie’s impeccable service for the last 13 years has done a great deal to revive the fortunes of the office of Governor of New South Wales.