Perospero will make his move and Chopper was the first to get toyed with by Perospero in WCI
If Chopper is to get a fight this arc, being part of a tag team that takes down Perospero might be the best option.
Maybe once the moon comes out of the clouds Carrot makes a return, and we get a Carrot and Big Bro Chopper
combo to seal Perospero's fate