Questions & Mysteries Oda might use "Dropping Onigashima" timer as Birdcage 2.0.

[MarineHQ]

I think Onigashima will probably land somewhere in Udon where not many people are around.

 

[Kaido D. Stronger]

It will land in WANO, the CHAD that was dancing in chapter 993 probably evacuated the population to another region of WANO or it will stop the island in some way, giving TENGU space to enter the battle, if it is not already on ONASHASHIMA, considering that O -TAMA is there, the blacksmith is waiting for someone, and that certain someone, will enter the second part of the war in the capital of WANO, or rather, the new capital ONIGASHIMA.

 

[Akuma_Law]

Not as timer per say but it will be used as a tool for something for sure

 

[sanjikun]

Yeah by "birdcage" I mean the "you better KO the villain or people will die" trope. Many different examples of this.