it was not really a theory, it was just what i personaly though could happen.
everyone else here has a personal opinion on how they think the movies may go, like with how Prentice1215 personaly think that the movies will go in a dirrection, were in Kylo is not redeemed and is instead killed off and looked upon as a horrible monster. (even though if one only watch episode 4 and 5, Vader is shown in the same light, as a monster of pure evil that no one would ever think could be nor should be given a chanse of redemption).
speaking of Vader's redemption, how would anyone feel if a similar scene like the one in episode 6 were in Luke defeat's his father and desites to not kill him were to happen.
but instead of Rey doing what Luke did, she does instead the opposite, and kills of Kylo Ren.
what would you guys opinion on a scene like that be?