I think it’s gonna have a heavy emphasis on pride and the defense thereof. Everything we’ve seen and heard of the Elbaf giants points to a culture deeply rooted in maintaining one’s dignity both in a fight and in everyday life - Dorry and Broggy have fought for a century over something they barely remember, Linlin was cast out for murdering an elder in a way not befitting a warrior, her affiliation with them after the fact fell through when she tried to substitute Chiffon for Lola when she was supposed to marry Loki, and Usopp’s whole MO is to be as confident in himself as the mighty inhabitants of that nation. Oimo/Kashi and Hajrudin gave us more examples of these behaviors in Enies Lobby and Dressrosa, respectively...I see this being a major focus in the arc that will likely be the last one before Luffy’s journey really reaches its crescendo. The entire series has kinda been a treatise on the importance of one’s will and spirit; having a personal code of honor like the Elbafians do would seem to tie into that quite nicely.