Nothing about Mihawk this chapter, it is about Zoro.
Even after fighting loads of DF user, from purposely hidden, Joy Boy reincarnation, mythical zoan Sun God Nika, to another mythical zoan Yamao, to Law with his 5 billion berry Ope Ope; Kaido ended up praising the DFless swordsman as in Roger.
He must remember something that happened several minutes ago, another DFless swordsman carried the whole team on Rooftop, stopping his combined attack with Big Mom, pulled advanced CoC and ended up scarring him permanently like Oden did past.
Kaido not only sees Oden in Zoro, now he also sees Roger in Zoro.