I get a sadistic sort of pleasure at how much people decry the idea of a threesome relationship if they've read the books.
Let us keep in mind that there will be, in essence, three type of people who are playing this game. And part of game design means that it will need to make sense to, and appeal to, all three types of people.
Person #1: I've read ALL THE BOOKS, probably played both games, and TW3 is the most interactive fan-fiction in my favorite fantasy universe ever!
This person has significant background with these characters. He will make choices based on this background, and expect the characters he interacts with to respond appropriately to the book background knowledge he comes equipped with.
Person #2: I've played the Witcher games before, and they have the BEST RPG STORY, I'm in love with Triss, and screw anybody who doesn't respect the fact that I've spent 100+ hours developing this strong personal connection with that red-headed wonder.
This person has deep attachments that are, in many ways, completely inviolate of the book source materiel, and will make decisions based solely on how Geralt has developed through the games and within their personal experiences from those games. This person will expect those choices to be respected and for Geralt to still be consistent to the Geralt from the their previous game experiences.
Person #3: I've never played a Witcher game before, but TW3 looks like the BEST GAME EVERRRRRRRRR, and I really want to fuck some shit up in this world.
This person, while not represented well on the forum, is going to make up a significant amount (one may even say the majority) of players who are actually completing TW3 in reality. They have no book knowledge, no game knowledge (except for whatever backstory is present in TW3) and will expect the characters to react properly to their choices within the context of TW3's story, and TW3's story alone.
This presents a large difference in player needs and expectations, and the choices that the player makes throughout the game (if the game is designed in the way it's being said that it is) should reveal to CDPR what type of player this is, what their expectations are, and how to provide that player with a sense of consistency in choice and consequences within the scope of their expectations. (36 endings, anyone?)
This being said, if you play the game shooting for Yenn, you'll probably wind up with Yenn. If you play the game shooting for Triss, you'll probably wind up with Triss (or maybe both?), If you play the game without a clear choice in mind, you may wind up with either, none, or both (I'm seriously doubting none though.)
Choices and the consequences of those choices are likely to lead to a much greater variety of different situations/outcomes than any single perspective of the character's involved and their personalities/histories will account for.
It will be interesting to see just how different two playthroughs of TW3 can actually be. (From what we've been hearing, pretty damn different, and I for one, am looking forward to it.)
