The game eventually underwent abundant changes and playable cuts and animations.
Big companies internally create versions and prototypes of their own video games to teach their executives and employees, and this happened exactly Assassin & Creed 3 which seemed like you can see in the video accompanying the news two years before its release.
And, yes, if the original game was released in 2012, this prototype was presented internally at the Ubisoft offices in 2010. It is true that we have already seen some versions of a rather poor quality than Connor's adventure in the past; but as part of the Assassin's Creed 3 Remastered, which just see the light on the PS4, Xbox One and Nintendo Switch we also have a higher quality version which is what you can see here.
Possibly the video showed an overly ambitious game, and is that there are a number of animations and numbers of characters on the screen that seem unlikely in hardware like the Xbox 360 and PlayStation 3, the platforms on which it went on sale.
The clip of the prototype appears in Assassins Creed 3 Remastered with a series of other materials and curiosities of the development of the game as sketches and very interesting elements, in order to know the interiorities of this launch so representative of the prototype. Assassins Creed saga.