I still think data brokers will not fully delete the data and would make it available or sell it elsewhere. Data should not be in the hands of these companies in the first place but I guess the cat's out of the bag. They should not collect data deemed sensitive and they should be fined heavily at least to deter wrongdoing.
Much of the data is just scraped from public records that aren't going away. (Yes, collection/resale of those records should be restricted...there is good reason for some types to at least be available)