Now that Kaido has actually sensed Oden in Enma I dont want to hear people say that Zoro didnt inherit Odens will.
-Kaido Sees Oden in Zoros sword, And like i said in the past in the one piece universe people inherit wills through objects.
- Further more a sword like Oden must have accepted Zoro as a worthy wielder the same way Shusui and
sandai ketitso
based on the past information on how swords treat their owners and on how objects carry the will of their previous owners and based on the current spoilers that Kaido sensed oden in Enma While Zoro attacks Kaido only means that Zoro has inherited the will of Oden to cut down Kaido.