"New game plus - quests will have no rewards..."

[Seraph522]

I think part of it may be what they're calling it. New Game+ in any other game comes with re-leveling. It's possible people took it as a given that it would have exp rewards at least, since that's a core concept of NG+ in nearly any other game.

I think that's a bit of a misconception, to be honest. By and large, NG+ means "replay the game but with certain bonuses" (at least in single player games; I'm not an MMO vet, so I'm not sure if this is common in this genre or if NG+ is even a thing in most other MMOs), which can vary wildly from game to game. Some games require you to level up all over again - Persona 5, for example, does this - but others carry over levels, like Persona 3, or automatically start you at a high level, like FFXII's updated versions (IZJS, Zodiac Age). Sometimes gear is carried over, sometimes it isn't. Generally, something is carried over, or some form of bonus is granted on the subsequent playthrough, but what that is by and large is up to the developers.