Curial offices should only remain if there's an election and accountability in the Curia. If that is not attainable then it should be a (local) moderator appointed by the administration if necessary and accountable only to the administration.
At present, I'd say the only option is the second one, but for the sake of broadening support I'd suggest instituting some means to revert in the unlikely event activity picks up. We could have a periodic 'census' to establish interest, with a participation threshold of, say, 15 votes?