Warning: SPOILERS for chapter #1129 of One PieceWith the latest chapters, One Piece has entered a new arc, bringing fresh journeys, characters, and, as always, exciting power upgrades for the cast. The upgrades for the Straw Hats begin with their captain and protagonist, Monkey D. Luffy. Since Gear 5’s debut in the manga, fans have been actively debating what Luffy’s next power upgrade might be.