Assassin’s Creed Is Going To World War 2
Assassin’s Creed: Unity will feature a section in which you will be transported to World War 2.
The implication here is that we could find ourselves transported to a number of different time periods throughout the game (or perhaps just multiple instances of the 1940s).
World War 2 is a setting that some fans have been asking for, so it looks like Ubisoft is looking for a way to shoehorn in some of those fan requests without creating entire games dedicated to a particular era.
You can see the Assassin’s Creed: Unity trailer showing off the World War 2 setting below: