User blog comment:SuperSaiyanSimba/New Assassin's Creed Revelations Gamescom Trailer-Desmond has a beard!!!/@comment-4215643-20110817181837/@comment-3276576-20110817183606

The closest link between them is Ezio though. So definitely not his twin brother. No, that is most likely Desmond, why would they show 16 in the gameplay trailer? Plus, he is wearing the exact same clothes which were already shown on earlier screenshots.