Although not confirmed yet by Ubisoft, it seems the next Assassin's Creed game will take place in a Viking setting. Theories sprung up with the discovery of posters in The Division 2 that seem to feature a Norse god or traveller holding what appears to be an Apple of Eden. Right now, Kotaku has confirmed from two independent sources who are "familiar with the game" that the next Assassin's Creed title, codenamed "Kingdom," stars Vikings.
New Assassin's Creed Game Might Be Set In The Viking Age - GS News Update
Theories have started that the Division 2 seems to be hiding the setting of the next Assassin's Creed game.