While redemption is a common theme in storytelling, it's important to remember that the character of the Joker is known for behaving in cruel and violent ways. The idea of him becoming a good guy can be seen as unlikely or out of character for him. Additionally, the relationship between the Joker and his pregnant wife raises concerns about their safety and the potential risks they may face. In any case, it's important to remember that this is fictional and it's up to the writers and creators of the story to decide what happens next.