It really is though...this is a game where there are a lot of big impact choices and depending on who you ally with and what you do things play out VERY differently. This isn't the kind of game where no matter what you choose you walk the same path and end up fighting the same people along the way. There will be vast differences in how things play out based on your choices.
I doubt its going to be that big of an impact. Even the games that have a direct focus on creating the different outcomes and branches of the storyline, depending on the player choices, just don't have a budget to make the major changes in plot. Its probably going to be just a upgraded version of the original sin 2, where you can bend the story, but most of the things will fundamentally stay the same. I guess that kind of subjective, but I didn't feel like replaying it, because I already played the way I wanted, and the second playthrough just going to be the same thing, but with the different props, where I'm not a mage but a necromancer, and not saving people, that I've saved, but killing them instead