Many fans have wondered if Roger possessed a Devil Fruit. One Piece chapter 1047 finally answers this question.
Wealth, fame, and power—all attained by Pirate King Gol D. Roger. Despite expectations of a rare Devil Fruit, One Piece chapter 1047 reveals the truth: Roger triumphed without one, thanks to Haki.

Kaido's statement renders theories about Roger's Devil Fruit moot. Some speculate Roger had the same Devil Fruit as Luffy, while others suggest an unrevealed one.
One theory suggests Roger controlled weather with his Devil Fruit, possibly now in Monkey D. Dragon's possession. Although evidence suggests otherwise, Oda's surprises defy expectations.

In Wano, Oda elevates the power of Ancient Zoan and Mythical Zoan Devil Fruits. Beast Pirates commanders demonstrate remarkable regeneration with Ancient Zoan, while Kaido, Marco, Yamato, and Luffy showcase the terrifying might of Mythical Zoan Devil Fruits.
While everyone awaits Gear 5 and Luffy's Devil Fruit awakening, Oda reminds us through Kaido that Haki is the ultimate determinant. For a while, Devil Fruits were seen as the primary power system in One Piece, with Haki merely considered supplementary. By confirming Roger never had a Devil Fruit, this notion is entirely reversed.

This change in One Piece's power dynamics also alters the perspective of certain characters. Figures like Rayleigh, Garp, Mihawk, and especially Shanks derive their strength primarily from Haki. Pirate crews like Roger's (excluding Buggy) and Red-Haired Shanks', despite lacking Devil Fruits, are formidable due to their mastery of Haki.
With just one statement from Kaido, Oda propels One Piece readers into a new journey: the exploration of Haki, deemed the most crucial aspect of a pirate's arsenal. What are your thoughts on this? Feel free to share your opinions!