My current headcanon is that Imu already has Uranus, and that he will send agents to take the other two when Luffy is about to confront him. Similar to how it was in Alabasta with Pluton. The Baroque agents were trying to obtain Pluton, while Luffy went after Crocodile. So, some Strawhats will go to Wano, and others will go to Fishman Island, while Luffy makes his way to Pangea Castle.
Crossguild will be hired by Imu to steal Pluton. Doflamingo will make sure that Crocodile doesn't betray the secret king. Mihawk, Doflamingo, Crocodile, Weevil and Buggy will fight Zoro, Sanji, Nami, Chopper and Usopp. The same 5 that defeated the main Baroque agents.
To get Shirahoshi, obviously Jinbe has to be there. Franky aswell, as he has no Devilfruit. Who will they will face? CP0, Holy Knights, Seraphim? Haven't made up my mind yet.
Fishman Island is directly under Maryjoa, Jinbe can get to the bottom of the sea quite quickly. Wano is a little more distant, though Usopp should by then be able to paw himself and others there.
Crossguild will be hired by Imu to steal Pluton. Doflamingo will make sure that Crocodile doesn't betray the secret king. Mihawk, Doflamingo, Crocodile, Weevil and Buggy will fight Zoro, Sanji, Nami, Chopper and Usopp. The same 5 that defeated the main Baroque agents.
To get Shirahoshi, obviously Jinbe has to be there. Franky aswell, as he has no Devilfruit. Who will they will face? CP0, Holy Knights, Seraphim? Haven't made up my mind yet.
Fishman Island is directly under Maryjoa, Jinbe can get to the bottom of the sea quite quickly. Wano is a little more distant, though Usopp should by then be able to paw himself and others there.