1. A method for execution by a processing system of a dispersed storage network that includes a processor, the method comprises: determining one or more slice names of one or more slices to consider for deletion; determining an access policy corresponding to the one or more slices that includes a time varying accessibility pattern; determining a current timestamp; determining whether there is no future slice availability for the one or more slices, based on the current timestamp and the access policy; when there is no future slice availability for the one or more slices: determining whether reconsideration regarding deletion of the one or more slices is available based on the access policy; deleting the one or more slices when the reconsideration is determined to be unavailable; when the reconsideration is determined to be available: sending a reconsideration request message to a reconsideration entity; receiving a reconsideration response message in response; and deleting the one or more slices when the reconsideration response message indicates that the reconsideration is denied.