We're on the knives edge for both characters right now
The next chapter will definitely be the one to confirm Yamato
It will also be the chapter that confirms Carrot's decision to either accept the Duke's position or not
Personally, it can go either way, though I ultimately would not be surprised if Oda makes it so that she accepts
The finale is finally here fellas, be sure to buckle up cause I'm sure when one or both finally join it's gonna be real explosive