Elbaph is an island known as the Warland Kingdom, home to fighters known as warriors, like how samurai are to Wano Country. They even have a village called the Village of Warriors and a spring named Warrior's Spring. It's the same kanji (戦士) used in Sanji's and Luffy's warrior-titled chapters.
If there were ever a time for another warrior-titled chapter, this would be the arc.
For Usopp, whose dream is to become a brave warrior of the sea inspired by the giants, Warrior of Courage (勇気の戦士 or Yūki no Senshi) is fitting.
Maybe it even becomes a trend that continues in future arcs, where two Straw Hats receive a warrior-titled chapter.
Wano Country Arc:
- Ch. 1031: Warrior of Science (科学の戦士)
- Ch. 1044: Warrior of Liberation (解放の戦士)
Elbaph Arc:
- Ch. 11??: Zoro's
- Ch. 11??: Warrior of Courage (勇気の戦士)