We don't know what the outcome will be of that said upcoming fight, so better not to speculate yet about what the possibilities for Casimero if he will be next in line.
Nery could fight Casimero if he wins the fight, it's still a good fight though. But, as we all know, the chance of Nery winning via an upset is very slim, more like 10% or even lower based on the betting odds now, so I don't expect him to win. Inoue vs Casimero, such an entertaining fight in paper, but let's see if promoters will agree to this, especially on the side of Inoue who are dictating the terms.
It's better for him and his camp to deal with another camp and bring his name up to get that decent opportunity to call for Inoue.
I'm sure Casimero's camp already have that in their plan, Inoue wants a worthy opponent and it will not happen if Casimero will not show a fight that he wins impressively.