He’s going to get his shining 1v1 moment for sure, that much is bound to happen tbh. I can imagine the prospects of the other support characters in Law, Marco, Kid, and whoever else going down towards the climax of the battle but not without doing their fair share of damage to pave way for Luffy to finish him off. That’s inevitable as far as I am concerned. Fights like the Straw Hats vs Oars or even Law/Luffy vs Doflamingo showcase that.
I have a hunch that G4 + Advanced Haki may not be enough tbh, Luffy could get another gear/develop another power. But regardless, Kaido is getting jumped by multiple characters, Luffy won’t solo.