Add an option to notify the most recent editor

Would it be possible to have Auto Expire notify the user who most recently edited a node (instead of the node's creator)? I'm thinking you could use code that looks something like this to pull in the last editor:

<?PHP
function last_edit_info($node) {
    $result = db_query("SELECT u.uid, u.name
                        FROM {node_revisions} nr, {users} u
                            WHERE    nr.uid = u.uid
                            AND    nr.nid = %d
                            ORDER BY timestamp DESC
                            LIMIT 1", $node->nid);
    $resultset = db_fetch_object($result);

    if(user_access('access user profiles')) {
		$author = $resultset->uid;
    } else {
        $author = check_plain($resultset->name);
    }
    return $author;
}
?>

This would be great for our organization, as we have a lot of content that's set to expire a year after it's created. Often, the content will be edited by someone else during that year, and the original author might no longer be with us.