The spoiler is confusing because compare to the previous spoiler the last move that Sanji used was his best shot, for Zoro it look different, they spoiler guy is not saying anything about his last move, so that something strange.
because he is saying this: The chapter ends with Zoro attacking King.
and not like the previous spoiler with svq this: - Then Sanji chains a series of attacks and ends with one called "Beef Burst". The chapter ends with Sanji attacking Queen with this attack.
This is clearly way different, I am pretty sure that ZvK will have 2 fully chapter. Zoro main thing in this chapter is clearly Zoro destroying King mask which Oda used to give us a flashback for King.
Next chapter we will have the final fight.