User blog comment:Master Sima Yi/Assassinews 05-08-'14 – Assassin's Creed: Rogue announced/@comment-13471981-20141025132414/@comment-3046679-20141026191808

Obviously it has existed, in some alpha/beta version of the game. Like I said, even the icons for hidden blade and chainblade, and weapon code for latter is in the final game. Plus, Connor in this demo moves the same way as Al and Ezio did. So this isn't some pre-rendered crap, this was the very first draft of the game.