He will indeed fight, just that it might not go the way you think
1- There is more build-up around Orochi/Kyoshiro right now, hell Zoro even already got code-blocked by him once in an attempt to kill Orochi, so might try to take his revenge on him next time
2- Onigashima raid is bound to fail since it's already been implied the arc will last a month, with the alliance not even knowing Big Mom is involved, so the supposed "year of Zoro" can't happen this year considering someone(probably King) is likely to slain him this year