So as I thought the cover was indeed actually for Aokiji and (probably Shiryu/Lafitte) to go to WCI and steal the road pone of Big Mom + Pudding.
Now BB is fighting Law and the last line "winner takes all" means BB will have everything without even fighting kaido or big mom lol. Smart guy for real, he does exactly what Roger did. Stealing, begging without facing anyone.
Now watch Big Mom coming back and becoming an ally of Luffy because BBP destroyed her country and kidnapped the only daughter who can read the poneglyphs.