Out of all the characters, who would have thought that Caesar would be the central person in helping save Zou and the Mink, albeit his assistance was acquired through blackmail, but still nonetheless his actions did end up saving the Mink race. The fact that Oda is placing such focus on Caesar and is going through to the effort to redeem his character somewhat suggest to me that Oda does have future plans for Caesar in being an ally/associate of the Straw Hat Pirates. If Jack and Kaido do have more of Caesar’s weaponry, Caesar being associated with the Straw Hat Pirates will be a huge benefit for them in their upcoming battles against Kaido.