Ubisoft had their annual earnings call recently and said that the next Assassin's Creed game, Far Cry 5, The Crew 2, and South Park will be released during their next fiscal year which ends March 31, 2018.

Our friends over at Ubisoft Toronto don't have any new updates on their site, but had previously worked on Assassin's Creed with Unity, and Far Cry with the 4th installment, and Primal. We'll probably have to wait an see until E3 to see these games in action, and which (if any) is Ubisoft Toronto working on specifically.