https://www.gamespot.com/articles/new-assassins-creed-origins-patch-coming-soon-here/1100-6456123/

A new patch is coming on Tuesday, January 16 for Assassin's Creed: Origins, and it's something of a big one. One of the topline additions is support for The Hidden Ones expansion, which comes out soon. The game's first expansion, The Hidden Ones sees Bayek fighting with the Romans in a new region. The expansion includes a new story and raises the level cap to 45. It is included with Origins' Season Pass and can also presumably be purchased separately.

The new Origins patch also adds a new quest called "Incoming Threat." Other new additions include a feature that lets you sell back outfits at Weaver shops. Additionally, new items are now available in the Heka Chest, including items from the Nightmare, First Civilization, Gladiator, Wacky, and Almighty packs. What's more, with the new patch applied you can toggle the visibility of some inventory items from the Gear menu.