I doubt they'll change the evil plotline to less suicidal-homicidal, especially since I seem to recall Larian being happy with the narrative as it is in the IGN interview a couple of months ago, but maybe the evil route will turn out interesting anyways. There's also a possibility that choosing the evil route won't be as suicidal as it seems in the long run, but I think that would just be reward the player for acting like an idiot. Personally this means that, if I'm to do a evil playthrough, it will have to be a himbo playthrough. Playing as a denialist PC that sees the infection as a blessing and/or expression of love, and people fighting against it as deluded idiots, is not necessarily even that detached from the evils of everyday life.