Oda is not even focussing on the fight between Zoro and Lucci, because it is not that important to him. We will have a plot twist in the near future ("[...] unexpected results [...]" as it was mentioned), initiated by the fight between that person and that person, as Oda said in his Festa letter this year.
After this plot-twist, we can again talk about who is going to fight who. And at the moment this is why I am already looking over to the 9 VAs, just waiting for their opponents. If Luffy or someone else does not Blueno one of them, all of the SHPs might get a fight against one of them.
Zoro's opponent this arc might be a VA.