So, as the Straw Hats leave Wano with 3 of the 4 Road Poneglyphs, there still is the mystery of where the 4th one is. Originally held at the Sea Forest in Fishman Island, sometime between Roger's final voyage and now, it mysteriously vanished!
During Oda's month break, the "Road to Laugh Tale" booklet touched upon this, and suggested three possible locations:
Hachinosu, Blackbeard's main island. It could be possible Whitebeard was given the RP from Neptune for safe keeping and upon his death, Blackbeard claimed it.
Elbaf, Land of the Giants. Elbaf is full of vikings....and vikings tend to steal things. Could they have raided Fishman Island and took it back home?
Vira. Now this one is interesting, as it's government was overthrown by the Revolutionaries, but it seems like this island is in Paradise, not the New World. Also, could Dragon be in possession of the RP?
Without this stele, the Straw Hats can't pinpoint where Laugh Tale is, and we're in the final saga, so they logically should find it soon. But where could it be?