Isn't The Plan obvious?
Zoro will simply make Dorry & Brogy Fight each other lol
He might even make them argue on who can Hunt the Biggest Nightmare Monster,
This will eventually turn into Zoro vs Killingham who is forced to intervene,
As for Trapped SHs, those Arrows aren't Invincible, it's just that their Hax is applied in a Loop, making Escape Near-Impossible,
Energy needed to break the Loop must cover the entire Arrow(s), and combine this with the Fact that it's Jinbe who was seen trying to figure out how Gunko's DF works, and the Fact that it's his Job to take down those Flames once Freed, it's clear that He needs to be near Water,
I think Sanji will throw Trapped SHs into Water, and then Jinbe manipulating Water surrounding them will Unlock those Arrows, and then stop Flames, and by figuring this out, it becomes Jinbe's Responsibility to go Rescue those Children as He can stop that Arrow Manipulating them, but the Problem remains Sommer's Thorns, setting up Sanji vs Sommers.