Feeling 50/50 on it, a part of me really enjoyed how New Game+ was used as both a part of the narrative and was properly built up by questing and collecting pieces to the Unity, culminating when you finally put it all together, it made it feel like a larger reward then just getting New Game+ for beating the main game (though at its core that is pretty much what Starfield did with New Game+)
There is also a part of me that always loved starting a playthrough of a TES game with a new blank slate character. Always lead me to experiment with weapons, playstyles, and systems I didn't touch much prior.
Wanted to see everyone else's thoughts but also any ideas you may have for how it could be implemented in any new way for TES VI. I had one idea where instead of beating the game, maybe you do a long questline with a Daedra who rewards you by letting you Back To The Future Part 2 your playthrough, going back with your skills and knowledge of how things unfold to have it play out more to your liking or differently