It’s not only announced, but it’s also available by the time you read these characters!
Capcom announced a collaboration with Assassin’s Creed, but unfortunately, it’s not as detailed as the upcoming collab with The Witcher 3 will be, as it seems we can’t expect new missions or an appearance of an AC character. The limited-time collab will „only” have the Bayek Layered Armor, as well as the Assassin’s Hood items in the monster-hunting game that launched in early 2018 on consoles (PlayStation 4, Xbox One), and in August on PC.
The items are only available until January 10 on consoles, as the PC version, like many times, is getting shafted, because Capcom said they would become available at a „later date” in the PC port of Monster Hunter: World.
At this point, we shouldn’t question the franchises Capcom will collaborate within Monster Hunter: World. Instead, we should guess who they will NOT announce teaming up with…