That would require a lot of work. Basicaly redoing parts of the game from scratch or making pretty much a second game.
Not saying I won't do anything similiar. There is something like this in the curent version, where the starting part of the game is slightly different if you ngive your character a certain name. Won't spoil it though. Small things like that will be in the game. Large changes like what you suggest might happen too, but only after the base game is finished.