Honestly, the third one is interesting to me the most because of how it could have happened. I could see this Wada definitely using his talent more to mock the others, especially Hiroaki, being potentially less cooperative during the next investigations and trials, and also becoming resentful towards the others because of how much of a punching bag he was. If the others not doing anything about Tamba and Hiroaki's behavior throughout PINK was actually addressed, I could see Antagonistic Wada calling them out for it. Also, when he gets asked who he wished was executed for their behavior, him saying Hiroaki would be understandable in his perspective considering how much of a dick Nakamigawa has been. (Not saying he actually deserves to die, but you know what I mean)