Why do people think Bigmom or Kaido or both will die at Wano? , they will lose and run away from Wano, make another plan or anything and participate in world-scale battle: WG, revolutionary troops, Yonko, those who hold Ancient Weapons ..
:cheers:
They have a perfectly good story to continue: Recruiting Rocks pirates. Bakkin and Weevil seemingly have no place in the story right now (or nothing hinted at) save for Rocks. Shiki has been teased multiple times again. Ochoku and Silver Axe (if they are not the thriller bark Zombies) were also name dropped. It seems to me like Rocks and his legacy at God Valley is going to become important in the future, especially if Wano doesn't directly address it.
It ALSO seems like BB and Shanks may have relations to the Rocks plot as well, as BB is speculated to be his son or his "will", while Shanks may have been born on God Valley considering Roger said he hasn't held a baby in years and Shanks is literally as old as the incident.
Basically I can see all 4 Yonko (and all the Supernova), clashing over something related to God Valley/Rocks in the future. It may not happen, but its a possibility for sure.