The switch to gold as money will be the last move made.

Governments since the 1970s have been loathe to do anything with gold, so we can expect current fiat currencies to be replaced by new fiat currencies before gold resumes its rightful place as money.

Central bank digital currencies will go online before gold returns as money as well.

Anything and everything which lets the current monetary system continue will be tried before it gets replaced by sound money and gold.