The new game+ mode for Assassin's Creed: Origins has gone live today, allowing players to bring a number of things with them forward into a run of the game.
Players who finish Bayek's adventure the first time around can start again with their abilities, outfits, experience, inventory items, and level all completely intact. It should make it considerably easier to get those pesky assassination targets whenever you want, and possibly take the more difficult route to killing them.
Not everything carries over, though. Anything that had a progress requirement the first time around still has one, including DLC. Maps and things like Senu's perception level are also reset. Additionally, enemy levels jump from the difficulty you were on to the next tier up; if you were playing on normal, you move up to hard; if you're on hard, you move up to Nightmare, which is where you max out. Enemy scaling is on by default but can be turned off.
According to Ubisoft's FAQ on the mode, a mysterious reward awaits players at the end, but they're not saying what it is. Your guess is as good as ours.
The update comes today, along with the new Discovery Tour Mode. The next update for the game is scheduled next week, on February 27th, which adds a quest to prepare players for the second and final expansion, The Curse of the Pharaohs, on March 6th.