There's 2 ways this can go
1 - Oda does the right thing
2 - after months of doing nothing in the ship and missing everything Oda has Zoro and Brook go inside the Lab and join with the other Strawhats
Clash with Kizaru, clash with S-Hawk and show us his DF and use of haki and a CoC blast, I know that Oda loves to have conquerors that never use CoC but Zoro isn't one of those filler characters. That would be enough for this arc.