Assassin's Creed: Origins will get a New Game Plus mode at some point
http://www.pcgamer.com/assassins-creed-origins-will-get-a-new-game-plus-mode-at-some-point/
Assassin's Creed: Origins is an exceptionally long video game. It took me about 60 hours to finish the bloody thing, though I enjoyed most of it. But if you've done the same and still want more, you'll probably be happy to hear that a new game plus mode is coming.
That's not really been announced as part of Ubisoft's ongoing support for the game, but a community manager confirmed it in the publisher's forums yesterday. "New Game + is coming. We'll have more information to share soon," the post reads. And that's all.