Additional thought: first time we've seen Hat Revolutionary's eyes, including the manga, I believe. A bit of a hit to the strange but somewhat possible Sabo theory.
Not the first time, we did see his face briefly in the manga too: http://www.mangareader.net/103-55664-3/one-piece/chapter-593.html And everyone started saying if he is Sabo he must have had a nose job I'm not going to rule it out yet, but there is a pretty drastic change in facial structure there. Coby looked pretty different after his "growth spurt" though, so who knows with Oda.