Another Assassin's Creed was teased at Ubisoft Forward. The new title is currently called Assassin's Creed Codename Red. No release date or timeframe has been announced, but there were other information.
The head of Assassin's Creed development, Marc-Alexis Côté, at Ubisoft presented the game as the "next premium title". Ubisoft Quebec is responsible for the development, which has developed almost all Assassin's Creed titles so far. Most recently, it developed Valhalla and Immortals Fenyx Rising. The setting of Codename Red will be in feudal Japan.
Assassin's Creed Codename Witch
The announcement of Codename Red was not enough for Côté and so he also teased Assassin's Creed Codename Hexe. This is supposed to be a completely different type of Assassin's Creed game. Codename Hexe is set in the late Holy Roman Empire. The creative director is already known and none other than Clint Hocking. He was previously creative director on Watch Dogs: Legion and Far Cry 2.
Assassin's Creed Infinity
As a final point, Côté said that both games will be part of Assassin's Creed Infinity. However, Infinity is not supposed to be a game itself, but rather a "starting point" into the Assassin's Creed universe. Ubisoft is trying to create with Infinity a way to develop a standalone multiplayer experience. How exactly this looks and what this really means is still unclear.
Assassin's Creed Codename Jade
Currently, nothing is known about Assassin's Creed Codename Jade except the name.