Venus 70%
Shiliew 29%
Mihawk 1% but actually less
- Venus is the clear final fight of Zoro, but won't be the strongest adversary he'll face. The regen Is the only problem Zoro is going to have, and possibly Zoro Is even going be arrive there injured;
- Shiliew has a low chance in the unlikely case BB Is the final villain, but in that case It's not even sure he will be the one facing Zoro.
Anyway, unlikely;
- Mihawk is never going to be Zoro's final fight. Strongest opponent, yes, but not last.
There Is basically a zero chance the CG Is going to be the final fight instead of Imu/WG and BB.