there is too much going on and it will take a while for me to digest it all
what I noticed most is the construct to the right that might be Pluton. When I saw Wano for the first time I always thought that the vulcano there resembled a giant chimney and there could be some sort of forge or so beneath it.
So Pluton slumbering under Wano...will Wano turn into a mobile island? Also we saw factories and such in Wano in that polluted area. Kaido's weapon factories. It could have been a hint all along.