User blog comment:Chase McFly/Theory-Could Leo no longer exist?/@comment-27663014-20161016181900/@comment-27663014-20161016190750

That doesn't mean leo doesn't exist. There are important characters, like Krane. Marcus, Sebastian, Taylor, and yes, Leo, that haven't been mentioned, it doesn't mean they don't exist. Just like guest characters can appear and never be mentioned again, thst doesn't mean they've been retconned.