Captain

A really strong one would be fitting, I mean it's the final Saga if Oda doesn't unleash all the power of the Straw Hats now it will be never. And not just Luffy and Zoro with Haki. Devil Fruits are way easier buffs. Nami is the third Straw Hat Technically so to give her a huge boost and finally put an end to the coward/weakling trio agenda would not be wrong, the strong female protagonist troop is very rare in Shonen, only Noelle from Black Clover is somewhat of an exception. And if Oda wants to make the Straw Hats the greatest crew in the history of One Piece he has to put the pedal to the gas for them now in Elbaph. I mean how can they become greater than the Roger Pirates or the Rocks Pirates when they have 3 strong people and 5 mid ones and 2 weaklings??? We will not even talk about Joy Boys crew that will come in a future flashback... I wasn't really a Nami fan till Wano but the courage she displayed in the last two arcs made me aplreciate her more. So Oda give Nami an Mythical Zoan goddess fruit and make the fans happy!!!