With the power of science and weather at her disposal, Nami is a pirate that even some of the veterans fear. With her recent acquisition of Zeus from Big Mom, Nami's weapons have been hugely upgraded and she's only going to get stronger.

Does Nami become good?

All of the Straw Hats took those two years of them being apart very seriously. The tragic loss at Sabaody Archipelago changed all of them for the better. Two years later, Nami has become a better navigator, fighter, and friend.

Will Nami get Zeus?

After the Straw Hats escaped from Totto Land and Nami revealed that she keeps Zeus in her Clima-Tact, it was shown that Zeus apparently did not mind working for Nami. However, when Big Mom was later able to use her power to regain control of Zeus, Nami stated that their friendship was over.