Is there a Pattern in the Volume Covers related to the defeat of some Major Villains?

I just wanted to point out a small pattern in the volume covers relating to the defeat of some major villains.

It goes like this:

1. Sometimes during a big arc, a volume cover will show all of the villains together.
2. The cover of the next volume will show all the heroes together.
3. During the volume after that, Luffy will defeat his main opponent.

For example:

ALABASTA ARC

-Volume 21 shows all of the Baroque Works agents together

-Volume 22 shows all of the Straw Hats together + Vivi, Karoo and Lashes

-During Volume 23, Luffy defeats Crocodile

ENIES LOBBY ARC

-Volume 42 shows all the members of CP9 together

-Volume 43 shows all of the Straw Hats + Sogeking (his identity shall forever remain a mystery)

-During Volume 44, Luffy defeats Lucci

DRESSROSA ARC

-Volume 77 shows the Donquixote Family

-Volume 78 shows the Straw Hats + Law, the Grand Fleet Commanders and the Tontattas

-During Volume 79, Luffy defeats Doflamingo

WHOLE CAKE ISLAND ARC

-Volume 87 has the Big Mom Pirates

-Volumes 88 has the Straw Hats + Carrot, Capone and Chiffon (and Pudding, I guess)

-During Volume 89, Luffy defeats Katakuri

I know there are a lot of exceptions (like Arlong and Enel for example), but I just wanted to point this pattern out in case we see it in Wano.

It could potentially indicate when Kaido is going to be defeated.

*by EEZAK04