What's the 
worst possible scenario(s) that could happen to fuck up the pacing and your overall enjoyment of Wano?
These are things I expect Oda to implement in this War..
For example, Worst Case Scenarios, shit that would piss me off:
- Momonosuke getting 3 or more chapters devoted to him for his growth (3 is low balling, ik)
 
- Shinobu getting 2 or more chapters of focus
 
- Laws fodder pirates getting 2 or more chapters of focus
 
- Tobi Roppo all getting back up + each strawhat is given an additional 2 chapters on their fight
 
- Luffy getting a Power Up (example G4 Rocketman) and then rekt by Kaido again
 
- Eustass and Law beating Big Mom into amnesia O-Lin for a third time
 
- Anything that has to do with the Big Mom Pirates (except Perospero + Katakuri)
 
- Anything that has to do with Headliners, Gifters, Pleasurers, Waiters
 
- Apoo is still up, T-bagging X Drake
 
- Another Jack, Queen, King Oda box without Kings Bounty
 
- Marco defeating King + we never get his bounty reveal, except several arcs later a SBS or Vivre Card tells us this
 
- Onigashima landing on Wano and some how, miraculously, with a stroke of luck, not a single Wano citizen dies
 
- Luffy actually defeats Kaido by himself + Kaido is a Wano slave in the Udon mines
 
- Kaido doesn't die + leaves Wano + says he will never return to Wano lmao