People should stop worrying about zoro, sanji and jimbei, they'll do fine in this arc.
All 3 of them are going to have their best feats in the serie so far, I'm pretty sure oda will deliver.
He kinda already shift the focus on pirates (straw hats and supernova for the alliance, kaido's and big mom's crew for the enemies) instead of the scabbards or orochi's forces.