Your deviation is brilliant as always!
Did you notice how moved is hannibal when he visits Will? He almost have puppy eyes too! Mmmm I adore that pairing more and more every day!
Yes I think Hannibal is going to be regretful in some ways. While he feels he had to get Will locked up, labelled insane, to protect himself, he still considered Will his dearest friend and his favourite project. He's bound to be missing him. The dynamic is going to be fascinating!