Ubisoft has officially acknowledged that it is working on Assassin's Creed Infinity. The online multiplayer game will incorporate elements from all Assassin's Creed games and keep things fresh by adding new content from time to time. Ubisoft's Montreal and Quebec studios will be working on the project together.
https://www.notebookcheck.net/Assassin-s-Creed-Infinity-Ubisoft-confirms-existence-of-online-game-service-set-in-the-Assassin-s-Creed-universe.549481.0.html