100%, mate.
It will be a combo between Ryuma and Luffy's first meeting with Zoro:
1. Kidd and Law KOs Linlin
2. Luffy KOs Kaido
3. With both of them failing, CP0 and BMP storm the capital
4. Alliance vs BMP vs CP0 happen
5. Kaido wakes up, shows his awakening and wrecks the capital. He overpowers Momoron and tries to lift Onigashima to the earth's orbit.
6. Luffy tries to stop him, but BM shows her awakening and gets in Luffy's way. She threatens Luffy by holding Tama hostage.
7. We see that BM and Kaido agree, since they fail, they might as well destroy the whole world entirely.
8. CP0 and BMP take a hike.
9. The alliance regroup and plans to stop three things: Big Mom, Onigashima, and Kaido.
10. Long story short, Law, Kidd, and Killer lead the alliance to stop onigashima falling.
11. Evoking Helmeppo, Coby, and Morgan, Linlin will hurry Kaido to drop Onigashima.
12. Zoro is sent flying to the skies.
13. The alliance stops Onigashima somehow.
14. Luffy channels G4 and blitzes Big Mom with Adv. CoC King Kong Bazooka to yeet her off Wano, saving Tama and fulfilling his promise to kick Linlin's ass.
15. Witnessed by everybody, Zoro kills Kaido above the capital with Asura (9 shadows) as the dawn finally breaks on Wano.
16. Everybody goes home happy.