The fights that made Zoro grows as a swordsman are the fight where he is push to high-extrem diff:
-Mihawk (he discovered the gap between him and his dream)
-Mr.1 (discover how to put Ryou on his sword)
-Kaku (Asura)
If Zoro fight Queen and Queen is not supposed to be a stepping stone in Zoro’s growth, he will mid-diff him. And a priori I do not see what challenge Queen can be for Zoro or what Zoro can gain from this fight as a swordsman. But who knows.
Now the more interesting question would be: how Oda see Zoro’s growth as a swordsman? Do Zoro have to fight other swordsmen or does he not?
Because I’m under the impression that for Oda, Zoro’s growth have 2 axes :
-Haki (the stronger and better the haki the more and tougher thing he can cut)
-The size of what he can cut (the stronger physically he becomes the bigger cut he can do)
And only one of this thing can be test against an other swordsman (Haki). Because I think that ultimately Zoro will be the first man to be able to cut a black blade.