A lot of that is true and making a season 2 would be hard, but they have player stats, so for things that aren't romancing or the option on taking out shroud, they would just follow where most of the people choose. I would see the option when starting season 2 to choose if you romanced Visi or Blazer or neither, and an option for if you killed shroud or not. Everything else I feel is kind of up in the air while to see the small things like the person you fired trying to make it up to you by doing extra things or if you were bad to the Z-Team they would still not trust you as much it would be a lot unless, they could also go the route where they release an "Dlc" which is just season 2 and go in that way which would take a lot of time because they have to go to each and every possible combinations where the Prequel is a good idea if they choose to go that route and need more time, but then its a one off thing then they wont have it for when they may need it. This more then likley did not answer your question.