User blog comment:Master Sima Yi/Assassinews 03-03-'13 — Assassin's Creed IV: Black Flag trailer and screenshots/@comment-69.123.224.236-20130303214743/@comment-1379990-20130304075755

I think it's getting leaked on purpose. I think they want us to think it's getting leaked, but all in all they just want to show what an awesome foresight we have here of the future of Assassin's Creed.