By the time Casimero becomes a champion, Inoue might have already unified a belt and could potentially decide to move up in weight class once again.
I hope that doesn't happen, as it would make it evident that Inoue is deliberately avoiding Casimero. Moving up weight classes after just a few fights in the super bantamweight division is a risky decision. We can't be certain if Inoue will be able to retain his power and maintain his speed as he continues to move up.
As per
https://www.sportingnews.com/us/boxing/news/stephen-fulton-vs-naoya-inoue-date-time-channel-odds-undercard-2023-boxing-fight/mwcibjot4vt4lblzgpwa9otjInoue is currently -250 to win, it's a huge favorite but I'm sure the value is still good as long as we put a good amount of money.