Oda-sensei might be giving Luffy a haki upgrade, but even that cannot answer One Piece's most burning question that compares Luffy with Roger.

Animation director Vincent Chansard, who worked on various episodes, openings, and specials of the One Piece franchise, ...

One Piece has consistently shown Luffy using weird methods to fight enemies, but absorbing Kizaru's attacks is another level. What if this is the key to Gear 6?