I think this is very impossible
Zoro vs Shiliew is already written in the stone
And Kuzan is too much strong for Yamato or Sanji or Jinbe (is too strong even for Zoro)
The most intelligent thing that Oda can do is take Kuzan and leave him out of this battle OR make a Kuzan vs Robin, so basically a fight based on concept of justice, life ecc not a real fight