Why do we discuss about Zoro match up?
Sadly there are break but Oda is rushing the final stage (3 fight are alredy over)
2 started a few chapter ago (Sanji@Queen) - Robin@Maria, scabban vs Jack etc etc.
We shall see pretty soon which fight we will have still I find pretty odd that the other got alredy few chapters of fight with the right match up and Zoro who right now has 0 business with King will be a certain fight. I find it pretty odd.
Marco is still there no idea what going on, but the 2 are still in same spot.
In any case, I find it very odd that before Zoro has even a confirmed matchup other strawhat ended their fight, that scheme never happen before, so the main reason that Zoro will face King is odd itself because doesn't follow the previous arc. Every straw-hat got a few chapter of fighting with their right opponent before all of them got 1 win after the other.
Let wait, it will take long due to break but in term of story, we will have the answer in max 2-3chapters for finals fight.