Next to zero unless theymos or cyrus miraculously start to restore them or more staff are given access to do so. If that doesn't happen then they best you can hope for is the automatic recovery tool that theymos is (or was) working on that he said should hopefully be available by the end of the year. I still think more staff should be given access to restore them in the meantime though. Users unable to provide a signed message are still going to be left in the dark even when they can provide other proof that the account is rightfully theirs.