Given that in chapter 4 Kris forcefully makes Noelle wear the thorn ring (which is likely a symbol of abusive manipulation and control) I think that this heavily implies that Kris, under the dictatorship of the player/soul is attempting to form an abusive relationship with Noelle in the aim of seizing absolute power over another character which is diametrically opposite of the themes of the player having no power to choose or control the game. It seems that in the wierd route the goal of the player is to obtain power by any means necessary even at the expense of all others. I believe given this that towards the later chapters (6-7, possibly as soon as 5) that the soul (player) will exert so much influence over Noelle to the point at which she becomes actually playable like Kris but significantly more resistant to commands and becomes even more desensitized to the violence she is forced to commit and completely losing her personality and emotions. This would end in in Kris completely rebelling against the player and trying to kill the soul and liberate Noelle alongside the help of Susie and Ralsei which makes the soul no longer able to play as Kris. This would also tie back directly to chapter 2 when the soul used Kris by proxy to forcefully make Noelle kill innocent monsters and even her own friend Berdly with snowgrave in cyber city for the sake of the soul's sadistic and selfish persuit of power. At the end this would result in the climax of Noelle now being fully under the control of the player, forced to kill Kris, Susie, and Ralsei (and possibly even her own family and neighbors) as they are all now existeintial threats to the soul's goal of power. I also think that at the very end once Noelle is "used up" by the soul and discarded like a tool, the soul breaks free from the player itself after obtaining enough "freedom" from the shadow crystals and kills the player controlling the soul in the same manner as Chara killing the player at the end of the Undertale genocide route.