In the arcs with significant 1vs1 match-ups, Luffy´s fights usually start first and finish last, sometimes with a loss in-between (Crocodile).
The interesting thing is that this arc contains more than just a primary faction that needs to be taken down. You have Fukurokuju, 2 groups of Supernova fighting each other, Perospero and Big Mom. Additionally you have a Scabbard facing Jack.
First and foremost, I think 1022 will likely address if the F6 are all truly down or not (i.e. Sasaki and WsW). If they are down, the next 4-6 chapters will mainly address:
- Neko/Perospero
- Raizo/Fukurokuju
- The 3 missing scabbards (Kawamatsu, Izo, Denjiro)
- Apoo vs Drake
- Killer vs Hawkins
- Inu vs Jack (if Inu is poised to lose)
- Orochi
- Zoro's recovery and fight
- Some updates on Big Mom/Kid/Law
- Where the strawhats go next (those that can still fight; i.e. not Robin, but Brook)
- Rooftop stuff (Luffy, Yamato, Momo, Marco?)/Momo saving the capital from Onigashima.
If the flying 6 not fully down yet (ideally Sasaki and WsW), then shift what I said from 1022 on to 1024/1025. After that, pretty much the same deal.
Once we are at this point, then we will finally get:
- Whoever vs Jack (If Inu loses, if he doesn't, then Inu vs Jack) for a few chapters
- Sanji vs Queen for 2-3 chapters
- Zoro vs King for 2-3 chapters (assuming that is where Zoro is going)
- Kid/Law vs Big Mom for quite a few chapters. If Oda intends to make her lose, then 5-6 chapters at least. If not, then it doesn't matter
- Luffy, Yamato, and Marco (?) vs Kaido. Within the first few chapters it will drop off to just Luffy vs Kaido. 8-10 or so chapters as per usual. Yamato and Marco (?) will fight until they lose or assist somewhere else.