You can't retroactively apply stuff like that. You can't say because in the future, Luffy and Zoro will become PK and WSS, that Kaido's death now will be a grand one by default. It's a terrible argument.
The war Kaido intends to die in, isn't this war.
He wishes to die in the World War while going after the One Piece, Wano is meant to be a preparatory stage for this upcoming war.
However, the Wano war will be the war in which he dies.
If the Wano war is the "World War" he seeks, then he wouldn't have an entire plan based off leaving Wano, seizing the Ancient Weapons and claiming the One Piece.
He quite literally says "We are turning this country into a pirate empire in preparation for the coming world war!!"
If he dies during the preparation stage of his "World War", against the Alliance. He will not be dying a grand death.
You can only retroactively say he died a grand death once Luffy and Zoro have achieved their goals of PK and WSS.
But at the moment of his death in Wano, he will have simply just died to an Alliance of Samurai and Worst Gen Pirates, he will not regard is as a grand death at all.
The war Kaido intends to die in, isn't this war.
He wishes to die in the World War while going after the One Piece, Wano is meant to be a preparatory stage for this upcoming war.
However, the Wano war will be the war in which he dies.
If the Wano war is the "World War" he seeks, then he wouldn't have an entire plan based off leaving Wano, seizing the Ancient Weapons and claiming the One Piece.
He quite literally says "We are turning this country into a pirate empire in preparation for the coming world war!!"
If he dies during the preparation stage of his "World War", against the Alliance. He will not be dying a grand death.
You can only retroactively say he died a grand death once Luffy and Zoro have achieved their goals of PK and WSS.
But at the moment of his death in Wano, he will have simply just died to an Alliance of Samurai and Worst Gen Pirates, he will not regard is as a grand death at all.
And again, what are you talking about? Oda has been jamming it down our throats that Kaido has been trying to die for years now. All these suicide attempts, and challenging the Navy and other Yonko's all by himself, getting captured to try and get executed. This wasn't all some precursor to him building up to the final war. He wants to die a grand death, and doesn't care how it happens.
Oda has already made statements that this War in Wano is going to eclipse the Marineford War, which is the war Whitebeard died in. So if Kaido dies in this war, he gets exactly what he wanted.