I've already been spoiled on everything regarding the ending of both the original game and everything to do with BBI, so that's not much of an incentive - is there much of a gameplay benefit to waiting until NG+, like updated store inventory?
And while the actual cosmology is an interesting base to build on (with the way the previous Arisen who failed at varying stages of the trials leading to the
were explored being some of the game's high points in that regard), the execution of the game's first act and the majority of the sidequests fell flat for me. The supporting cast and their subplots generally did nothing for me for the majority of the game, and until the post-dragon world, Gransys is as generic medieval fantasy as it gets - while that's arguably the whole point, other games have managed to take just as heavy a traditional high fantasy and D&D inspiration and turn it into something compelling in its own right.
Then not really, NG+ doesn't change anything cept the offline mode ending.
But that's the thing, this isn't the story of some hero of legend or someone with special powers; the arisen as chosen one is very much a nobody. They are minding their own business and welp their heart gets stolen.
The story itself is very much an exploration of "why", it's not it's place to hold your hand and tell you exactly what's happening, it's very much the point of being the opposite of this.
This is why when you first encounter the hydra, you very much get a feeling of how the hell am I supposed to fight this thing? Up till this point you fought some goblins and maybe saurians, and were still a relatively care free fisherman.
It's not until the hydra fight that you realise that this life is over, and you are indeed something important, because even though it seems impossible at first (which is also a reflection on the simple nature of the arisen at this point), you overcome this fight with relative ease.
This is also why the sidequests are so inconsequential, because they are supposed to be; they have zero bearing on the arisen and are literally just about world events, but world events don't concern the arisen anymore, their entire purpose now is the dragon.
Having intricate plotlines that dealt with the arisen, aside from their challenge to the dragon would just detract from their singular purpose; they aren't special to the world, they don't have a bunch of attachments or affiliations, they are a simple person turned bound to a calamity.
The sidequests are just the arisen putting themselves in other people's lives, they are literally just helping out, and then moving on, you're not supposed to get anything substantial from these events.
The nature of the arisen, the nature of the dragon, and the nature of the world is what the story is, and I believe they've crafted something that's quite unique, which required a certain way to approach the story and I like it a lot.