A Swiss retailer by the name of WOG recently posted a product page for the yet-unconfirmed Assassin's Creed: Empire, and while there are no screenshots, product details or any other information to go off of, there appears to be some form of release date: Q4 2017.
Anyway, we've heard rumblings about Assassin's Creed Empire, the supposed next game in the series. As the retailer suggests the game will also release on PS4, Xbox One, and PC, as expected.
As Ubisoft have tended to release the latest Assassin's Creed game in October or November, it looks likely that this date listed by World of Games, while probably being right on the money, is just merely a placeholder for the time being. It wasn't too long ago that Target leaked Middle-Earth: Shadow of War before it was announced by Warner Bros. Last year Ubisoft announced that they will be taking off a year to take the game back to its roots, which ultimately was a good choice.
"Can you? Can you assure me?"
Ancient Egypt also allows Ubisoft a significant amount of freedom; there's very little documentation of major events that far back, so in essence the game can allow players to do nearly anything they want and call it "history". The source said this biennial approach could be a new trend for Assassin's Creed, which has suffered from franchise fatigue in recent years.
As with any leak, take it with a grain of salt until we have official confirmation from Ubisoft.