Assassin's Creed: New Game + mode for Assassin’s Creed Mirage will be available in a free update this December. NG+ will come an optional permadeath mode also available across all difficulties.

From the lil bit that I actually played of it: it does take several steps in the direction of the older games, with a more parkour friendly area that brings to mind OG assassins creed (like, it's meant for you to move around from building to building), significantly reducing if not outright removing the RPG mechanics of the previous 3 games (thankfully, IMO), and even a bigger emphasis on stealth. It brought back social stealth as well, but just like in Valhala it just feels...there? Like it feels tact on instead of there for a reason--could be I'm not using it right tho. Albiet, it IS hampered because of both the limitations with the engine (that was built for the RPG games in mind, and that playstyle) and the fact that AFAIK, this was basically a DLC for the last game originally, before it became its thing. It's tied to Valhalla's DNA, even tho it really shouldn't be, basically.

Dunno, I feel the Devs REALLY wanted to make it more than they did, but didn't have the resources to do so. Regardless, IMO it's a solid first step that, while nowhere near perfect, can continue to become better with sequels if this is where the series goes from here. (And prove that "going back to the roots" can bring innovations to something, not regressions)

It's almost exactly like AC:Unity if you've played it, just with a different world (similar to Origins' "middle-east yellow" aesthetic), boring story and uglier cutscenes.