I doubt it.

Even a child is known by his doings, Whether his work be pure, and whether it be right.

-Proverbs 20:11, KJV

Do I think my Cheater (and her sinful cohorts) have changed for the better?

I doubt it.

Character does not change overnight. My last contact with my ex-wife had her stuck in arguing realities about our marriage’s end. It did not seem to me that she was interested in learning and turning from her sin.

Wherever the Cheater ends up after us, they bring all their disordered character with them. They cannot out run it.

Would I love to hear of a true repentance and change? Yes, actually. However, I am skeptical that such is in the cards.
Regardless, that is God’s problem, now, NOT mine.