Oh, I agree, it'll somewhat depend on your choices. Having said that, I think it will be extremely difficult from writing and, more importantly, rendering perspective to have a lot of branching narratives. It's just too much work even for a whole studio, let alone an indie developer.
Example:
Suppose we're team Olivia and we try to slowly consolidate power and remove lesser enemy staff members to replace them with our people. Say, we kill Patricia and replace her with Angelica, who perfomed very vell during the Game Show and got promoted as the result. Moving forward Tess will have to render a scene with Patricia and with Angelica, or come up with an excuse to not show the killed character (she has gone on a secret mission to the Wasteland or something). And that extra work adds up very quickly, especially when there are so many characters who can potentially die. KG has an excellent replay value, but I think it would be too much work even for Tess.
In conclusion, I still think most characters will die as the result of the main story going forward, not nessesarily because of our impact on it. Or it will depend on our choice, but then the majority of deaths will happen in the last 1-2 episodes.