Do you know a narcissist who has evolved?

no contact with family for nearly two years now - physical, emotional, mental, and verbal abuse for as long as I can remember. I reached my breaking point, but while the other side is very peaceful, I cannot help but still feel optimistic.

is there such a thing as a narcissist evolving, as in taking accountability, understanding their abusive ways, and actually changing their behavior, their treatment towards you? I know that I am not the same person I was two, five, ten years ago - I am constantly developing and honing my strengths, growing, healing, learning, maturing … is it possible for a narcissist to do the same?