As I said: one can always do this manually. But that's rather different than automating the process.

If this feature is implemented I don't know whether it'll be a paid-user only one (I would think so) but paid users can already use the mass privacy tool to change all their access-locked posts to public. It's not as automatic as this would be as you need to go there and request the change but it's a world away from manually changing the security of each of your entries.