Also, do you wanna know why it makes no sense if Graves never comes back? Because a huge part of Credence’s story and Credence’s character was shaped by him. The man used and manipulated him before betraying him in the worst way possible and there is no way that Credence won’t remember it for years to come. As we already know that Credence is going to become an important character in this story, I cannot believe that Rowling could let such an important thing for him go without ever being mentioned or solved again. It has to be discussed at some point. It has to. So there’s still hope.