Yes, and there have been plenty of such cases. Software can be changed from questionable to reliable, ownership can be passed to a trustworthy company, and services and practices can be revised. It also depends on the reason the location was labeled rogue in the first place. Minor issues like spam or complaints can be fixed. However, if there was stealing or practice of providing ripped releases, there is no coming back, and, unfortunately, this is the cause with most of the blacklisted titles.