It definitely means that only items that were listed before the date mentioned will be sold at the old rates after this change goes into place. All other items that are listed after the date mentioned will be forced to use the new system.
So if you've currently got something listed, they're not gonna make you relist it once this goes into place. But that's all.
So if you've currently got something listed, they're not gonna make you relist it once this goes into place. But that's all.