User blog comment:Master Sima Yi/Assassinews 12-05-'15 — Assassin's Creed: Syndicate has been revealed!/@comment-210.187.170.102-20150808095813/@comment-1888015-20150809070932

There is no time travel in the Assassin's Creed series and I do not suspect there will be any of it. The Animus is a tool for the modern day story to look back into history. While this exists, there's no motivation to "go back in time" in the physical sense.