People will always make jokes about the slap for the rest of his career unfortunately. People still joke about the entanglement, they still talk about the open marriage. It will always be there and someone will always make a comment.
I don’t however think it’s the end of his career. He’s too liked and too talented for it to overshadow his whole personality.
I think the next step for him is to go about his business. Do a new film, then as he’s promoting it, he will undoubtedly be asked and he can address it then.
I don’t think he should do an interview just about it. It’s just bringing it all up again.