I wanna point out something.
Franky said "I will build a Weapon to Fight Kaidou" + His Laser does Internal Damage (As explained in Punk Hazard)
Sanji is fighting someone with Tough Skin, so his New Power-Up is doing Internal Damage somehow (Fire Upgrade most probably)
Robin was revealed to have learned Fishmen Karate which makes her just like Jinbe, able to deal Internal Damage
Nami have Zeus which is Lightning so Internal Damage is also part of it, as seen against Ulti
Zoro obviously is a CoA Specialist
This only leaves Brook, Chopper & Usopp (Conveniently, they are only Trio without a Real Opponent or Fight)
Oars Fight started with Straw Hats fighting him & then Powered-Up Luffy arrived
And most Fans have already noticed that Thriller Bark & Onigashima are related/similar.
Not to mention that Straw Hats are mostly fine after their Officer Fights & are ready for another Battle
It's obvious what Oda is preparing, Nine Shadows will arrive to Defeat Kaido, they are none other than SHs themselves except Luffy.
Brook, Usopp & Chopper since they can't deal Damage, they will be the ones to Immobilize Kaidou (Brook's Ice + Usopp's Arsenal + Chopper's Strength), they will do a Combo that can Stop Kaidou for few seconds. Then comes Jinbe, Nami & Robin who will use their Fishmen Karate + Robin's DF + Zeus to prevent Kaidou from attacking or countering during those few seconds. Then finally Franky, Sanji & Zoro will come to finish off Kaidou, with Franky using his New Weapon, followed by Sanji Powerful Kick and ends with Zoro One-Sword Style to finally Behead Kaido. (In his First Try, he missed, so it's obvious that next time he uses it, Kaido must be Stuned & unable to move, which is the Straw Hats job to do that)
Luffy will Defeat Kaido in his Hybrid Form & most probably destroy his Weapon (Which symbolizes Luffy's Achievement to all others whether they witnessed the Fight or not), then Kaido recovers & goes on one last craze, but Straw Hats come in to the rescue & they Defeat him (With Zoro dealing finishing blow). During this Scene, all Straw Hats will be next to each other & the Full Moon behind them casting their Shadows over Flower Capital