Thanks for the suggestion!
The game is already full of choices you can make, though. Quests and rewards change depending on your choices and wether you can finish them perfectly (sometimes "failure" can bring you even more interesting results), as well as more casual scenes. The main story only has one ending everyone will get (I'm thinking of ways of implementing new endings but honestly I don't know what would fit lol), but some choices have consequences even several hours later.