Any one of those guys can and have the capability to break the 10 second barrier. It's just a question of when, if the conditions are just right for them, both mentally, and physically. They can they will eventually.
My best bets are Christian Blum, and Craig Pickering. Craig, because of his powerful stride, and Blum, because of his natural grace and stride, add more power to it, and he will zoom, zoom, and zoom. Any one these guys can zoom past 10 seconds, it's all a matter if things just go perfect for them.