Was Gear 5 planned since Chapter One of One Piece?

Oda is a master of foreshadowing. But was Gear 5 planned since Chapter One of One Piece? Or a random power-up as some fans believe?

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Was Gear 5 planned since Chapter One of One Piece?

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Was Gear 5 planned since Chapter One of One Piece?

ODA ALREADY PLANNED GEAR 6! One Piece Power Twist and Luffy's FINAL GEAR Form! Ch 1056 #onepiece1056