
Let's be real: If Boa Hancock would lose to the Navy/World Government then we could only expect the worst things happening to her. Let's remember the fate of Bartholomew Kuma...a moment of silence.
Lucky for Boa Hancock's fate - she faces Koby, the most recent Navy hero.
Wano is over, we have to learn about what occured on the outside world and seeing how Oda concludes Wano we can only make better guesses about how Oda would conclude other things. One thing is sure: Luffy, Law and Kid are on the rise and I think also Koby was on the rise.
He defeated Boa Hancock, but I think that Hancock told Koby that she would rather die instead of being captured. Koby brought Hancock to a secret SWORD hideout and they all probably decided to spare her. Handing her over to the World Government would be a death sentence cast on her, I can see that SWORD sees this the same way and if they really act on their own and against the unfair treatment of the World Government, then they would rather protect Hancock.
Maybe they decided to announce her death while she is hidden in a secret SWORD-prison. It would be interesting if more friendly pirates will end up captured there and due to SWORD they will be spared from the chaos and might even reappear EoS.
Not only that: The World Government might find out about this and SWORD "siding" with pirates might be the World Governments final argument in order to announce half of the navy as traitors: This would be the final splitt of the Navy and the moment the final gears shift.
I will use this as a prediction and I hope we will figure out more soon, after the break!