Ubisoft CEO promises a "major leap forward" for next Assassin's Creed.
Represents a 70 per cent increase over Assassin's Creed Revelations.
Call of Duty: Black Ops 2 moves back to the top, whilst Devil May Cry slumps to fourth.
Relative unknown Michael Lesslie the latest to join the project.
Coming January 9 for PS3 and January 15 for PC.