One of the struggles of this games is figuring out which edition to buy (at least it was for me), so you get the season pass as well. The Imperial Edition is the one with the Season Pass.
Btw I hope this is only a result of lack of someone's ability to manage the store page, and not a result of them trying to obscure which edition to buy for monetary reasons...
The other one issue, which actually made me refund the game is the confusing mess that is the main narrative. Unlike in most old isometric crpgs, in this game the journal barely helps you figuring out where to go next, which is fine if you like non-linearity, and to explore around, but if you like to follow a linear path and doing the side-quests along the way, like in those old games (like I do), you may have trouble.
Also searching for a guide online gives you mostly unavoidable spoilers, which I don't mind at all, but most people do in my experience.
So just be aware of these things.