Anyway if the gorosei are reintroduced as fighters at this point (monster shadows for sure hint at that at the very least), that probably means they are actually stronger than Kaido and BM, otherwise it would be pointless (at least if they are not the tobi roppos of Im, or at best his YCs). Then there is also to see the role of the holy knights. So this is most likely Oda who is starting to build the roof above BM and Kaido level.