This is Oda, he probably already knew the twist, at least in a general perspective.
He even introduced the 4 yonko via Garp earlier during the post Enies Lobby and Big Mom never looked friendly at all and the appearance wasn't misleading.
He even introduced the 4 yonko via Garp earlier during the post Enies Lobby and Big Mom never looked friendly at all and the appearance wasn't misleading.
if anything Kaido was always the lurking threat. He was portrayed to be vicious in thriller bark and warmongering in marineford
Just compare chapter 795 to Big Mom’s introduction. It’s obvious who Oda presents more as a villain