Lately many ppl went down to the underwater
First Kidd crew
Then Law crew
Barto crew
And it's high chance the missing SHP with Sunny got suck to the underwater by man with burn scar or whatever.
All of them likely meet each other again in some underwater realm
Atlantis in one piece let's gooooo!
(I don't count fish-mid island)
Maybe they'll meet Arlong somehow lmao.
What if lulusia or gods valley is underwater although the latter is in west blue ofc and I can't remember where lulusia was. New world?
Jinbei found all those underwater ruins in his cover story that we all glossed over before. The sunken cities. That shit is my jam tbh.