I would agree if we were just talking about humans, but perhaps that’s not the case with God? I would imagine there’s no need for this choice in heaven. Please see my #108.
I don't really understand how it works out in heaven. As I understand it, heaven is a state of being beyond time and space. If you are in a timless state, how does before-and-after work? How does cause-and-effect work?
Can you change your mind?
I don't know!