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?

One Piece: All gears of Monkey D. Luffy explained - Dexerto

One Piece': When Will Gear 5 Be Animated? Answered

One Piece: Fans overlook this Tom & Jerry reference before Gear 5 - Dexerto

Why do people believe Gear 5 was planned since Chapter One when, gear of 5

One Piece confirms 2 Gear 5 episodes arriving sooner than expected

Chapter 1044, One Piece Wiki

GEAR 5 Has Been Foreshadowed Since Chapter 1

Luffy has a design problem (1046) : r/OnePiece

OP-05 manga card! : r/OnePieceTCG

LUFFY LUFFY LUFFY Luffy's Gear 5 is the next design for the One, gear of 5

Gomu Gomu no Mi/Gear 5 Techniques, One Piece Wiki

Why do people believe Gear 5 was planned since Chapter One when, gear of 5

One Piece's Creator Confirms Gear 5's Hidden Origins