Honestly I'm not optimistic. Nami/Usopp vs Ulti resolution wasn't even a whole chapter, it was like half. 2 dedicated chapters would have happened in pre-ts, but now I wouldn't bet on it except for maybe the monster trio fights
Yeah, think Dressrosa, not Enies Lobby. DR is the best template for post timeskip fights we have. A fight snippet, and then a dedicated focused chapter. Nami macvised Ulti.
I think there has to be a middle ground between Bleach 1 v 1 10 chapters, and Oda's hyper speed pacing though. What Oda did is that he dedicated each fight snippet to make a point.
Point 1: They are outmatched in a head-on head fight
Point 2: Hitting and running is the best tactic
Point 3: PageOne and Ulti are too durable to lose to Ussop and Nami, but they were being won down.
Point 4: Big Mom's powers can damage them decisively, but Nami is too slow and her lightning too weak.
Point 5: Nami overcomes said boundaries.
I expect the anime will elaborate on this, but it's a habit he's gotten into at this point. The fans obsession with "real" 1 v 1 fights have blinded them from seeing that these are the "real 1 v 1" fights.
This is literally the same strategy as Zoro v PIca if you read back btw.