Will Nami Learn Haki. Nami has Haki Myth Fact. Level 2 6y.
Usopp havent tried firing his armaments to a Logia so its hard to prove that hes capable of Armament Haki but provided that his weaponry is a lot more powerful he may be able to utilize Haki. Despite her use of the Art of Weather and the Clima-Tact Nami will not learn Haki in the future. Brook is not too far to learn it while Nami Franky and Chopper can learn while on the journey.
Now not only was Sanji running away from the okamas the entire time but he had to fight the 99 NewKama Masters.
Does Luffy ever learn Haki. It can be used to sense peoples spiritual energy and predict their actions give the user a protective coating of spiritual energy and for a certain group of chosen ones overpower the willpower of others. Haki is unlocked by getting high quality experience. It wouldnt make sense for her to learn Haki.