Some ideas for Kayle's personality
I'm have few ideas of what might be Kayle's new personality, since by now we know the basics of her being and evil ending hero for no matter the cost and putting justice on the first place. But she won't be just that she will have something more then just that. Hmmm I thought of maybe her sometimes questioning the orders from her superiors or maybe has her own way of doing things right that are not as the given orders. Or maybe fully accepting what she is told and repressing her own thoughts and feelings or fully forgetting what she once was for Targon and going on her own. I think the last thing could be mirrored with her ascension (getting the angelic wings) as a metaphor of her breaking free and going after her sister. I don't think she will go rouge but I think in the process of her finding Morgana she will eventually change to being her to being Kayle not a Targonian warrior that does what she is told without second guessing.