And it now happened, WBA Super Bantamweight Champion Marlon Tapales might now be the PH boxer who has the chance to face Naoya Inoue first, instead of the expectation of the majority, that it's Casimero who is currently still climbing the 122 division rankings. Of course, Tapales meeting Inoue soon will just happen if the latter will win against Fulton.
If Stephen Fulton wins against Naoya Inoue, Marlon Tapales instead will unify his belt against him. If Fulton still wins, Tapales might meet Inoue as both will be a contender but the status of Casimero when that time comes might still be hanging because he can't even secure a big fight "for now" to somehow give him a chance to climb at a much higher rank.
There's also a possibility that later in the 122 division, a PH vs PH might face each other.
Well then, too early for these speculations mine

. What matter here is, Tapales is now almost secured to have the next big fight on his timeline.
What you're saying is not entirely impossible mate because as long as Casimero will stay active and have successive fights, soon enough, his ranking will surely increase and most probably will earn himself a big fight someday. Although there might be some changes when it comes to the possible opponent of Casimero, Inoue and Tapales because I think Fulton will shuffle all the cards in time when he leaves the division and vacates the belt he is possessing, if he won his future fight with Inoue.