CP-0 aren't stupid to think they can take Control of Wano after Kaido's Defeat with just few Members
Luffy's Alliance & Wano Samurai aren't gonna Magically disappear, not to mention Big Mom is there too
I believe it's almost certain that CP-0 brought a "Weapon" with them
Which i believe is either SSG, Vegapunk himself is there or another Weapon stationed somewhere nearby
Obviously, things won't go according to Plan & whatever Weapon they brought, it's gonna make an Appearance before Raid is over
Someone must discover this CP-0 Plan & use that Weapon to both help Defeat Kaido & force CP-0 to retreat
Since Lucci is outside Onigashima, then this Character should also be outside it
Only Character out there & conveniently have a Power suitable for stealing a Weapon/Tool (Not matter how Big) is Caribou
But what would convince Caribou to do such thing? I believe that this Weapon due to how Powerful it is, can be compared to Ancient Weapon, a Word that Caribou is familiar with & have interest in.
I honestly don't know how Oda can play this Scenario, but there is High Chance that Oda will Hype CP-0 Skills by showing them Defeating Law's Crew, where Shinobu uses her Powers to Hide & Caribou joins in, they hear Lucci's Conversation & that they have a Powerful Weapon nearby to take over Wano with, Caribou steals the Weapon where it's revealed that Vegapunk is Inside it.