Dr Judy Shelton shows she wants to go back to a gold based system, however there is such huge amounts of currency in the system that redemption of gold directly may not be appropriate. A gold bond system is a possibility she would consider.
Sauce:
https://twitter.com/judyshel/status/1155857885139615745?s=19
https://twitter.com/vtg2/status/1155857205951979520?s=19