User blog comment:Master Sima Yi/Assassinews 12-05-'15 — Assassin's Creed: Syndicate has been revealed!/@comment-74.73.20.177-20150718124437/@comment-24849873-20150721031501

There was an article in May saying that they would take a similar route as Unity in the modern day.

http://www.gameinformer.com/b/features/archive/2015/05/12/interview-the-finer-points-of-assassins-creed-syndicate.aspx