Honestly I'm at a point where I feel this big upcoming war will involve even the SH Grand Fleet
And if by any chance that's going to happen, then Oda can also wrap Big Mom story and give it a fair conclusion with the presence of the New Giant Pirates members the likes of Hajrudin and Girth ...etc.
Specially with Oda's recent claim that One Piece story needs 5 years to end. If Big Mom takes a third arc, then basically Oda is stretching that period. Let's all remember that Oda makes around 36-40 chapters a year considering the breaks
So, basically a big arc or saga that contains 100+ chapters will take 2-3 years!
Let's also remember that BB and Shanks need their arcs, Oda can combine both in one saga like he did with Kaido and Big Mom, but still that can take 2 years at least as a saga
The WG final war needs its preparation, set up, flashback, Revolutionary army and so many different aspects before getting into one
Let's not forget that the crew members need their focus to achieve their dreams. If Oda skips and offscreen their dreams, I swear that I will conclude that Oda is the worst and most idiotic writer ever! Because he would rather waste many panels in many chapters on unnecessary stuff like comedic gags from side characters rather than give the crew members what they deserve by achieving their dream
And the only reason I am not disappointed that Big Mom was fallen on WCI now is because Oda intended for her to join the upcoming Wano war. But if oda made her stay in WCI and Kaido got taken out this arc separately and then we go for Big Mom next, I would have been hella disappointed, in fact, I might even skip reading the arc, yes, that's how much I'm not interested in Big Mom having her conclusion about Mother caramel and giants, I actually do not care at ALL.
I may only check the fights and see the power ups, that's all when see the thumbnails on youtube hahaha. Other than that, fuck it, I have no interest
There is literally no need for a whole other arc dedicated for Big Mom in my opinion, because there will literally be nothing revealed in the arc worth having one separate arc for!
Her bounty and her rox flashback will be revealed in Wano already, and we know every single details about her crew, and the ones who didn't shine in WCI, like Smoothie and Daifuku will have their time in Wano. Like, what do we need more? Just bring Hajrudin with the fleet and wrap her story in this upcoming war
Marineford had one Yonko falling, so the way to topple Marineford is to have Two Yonko falling
Also, I already stated my opinion on how Oda can give one yonko for Luffy and the other Yonko for Kidd
It's the only way for oda to give Kidd the same amount of hype Luffy gets and becomes a Yonko and on equal footing with Luffy after Wano.
If Luffy and Kidd teamed up on a yonko, that would be the worst, cause I'm sure it will turn out like Dressrosa with Law, basically Luffy will get most of the credit cause he will land the finishing blow. BUT, if Oda made Luffy has his own team against Kaido for example, and then Kidd has his own team against Big Mom. Like Kidd stated, he will go his own path and will not join Luffy in the fight against Kaido, rather he will end up creating his own team against another Yonko present with a history record, Big Mom since Kidd went to her territory before!
Both Luffy and Kidd taking down two Yonko who are being treated in the same caliber will give Kidd the proper hype as an equal