"One Piece" chapter 782 spoilers may have been revealed online as it is suggested that Luffy would unveil a new form and a new attack against Doflamingo which suggests that this is the famed "Gear Fourth".
Here's a brief rundown of what happened in the previous chapter, as reported by KpopStarz.
"The citizens of Dressrosa panicked as the bird cage keeps on shrinking. Doflamingo told Luffy that he have one hour to beat him. As Luffy attacks him, Law used "Shambles." Law appeared right in front of Doflamingo and attacked him with "Gamma Knife!" The attack destroys Doflamingo's internal organs as he screams in pain. Unknown to Trebol and Doflamingo, Law was using the Ope Ope ability and created a massive room. Law says this costs him some life, but it was worth it for that opening."
"Law also used Shambles to swap himself with another body from down stairs who received the bullets for him. Trebol tries to retaliate but Luffy kicks him away with ease. Meanwhile, Law attacks Doflamingo with full might Counter Shock. Law, unable to continue, was about to get stomped by Doflamingo, who just gets back up! He says he can operate himself with his strings. As Law was about to get stomped, Luffy stopped Doflamingo's foot with his own. The two glare at each other."
And now, JapNation AniManga has reported on the "One Piece" chapter 782 spoilers and stated that Luffy will use a new attack that could very well be the "Gear Fourth".
"Luffy will have a flashback of his training with Rayleigh. He will reveal a new move, which will deal some heavy damage to Doflamingo. As the injury inflicted by Law worsens, Doflamingo is getting hit consistently by Luffy and one of his blows breaks Doffy's eyeglasses. Luffy and Law are shocked that he is cross-eyed and Trebol, furious, attacks Luffy only to be stopped by Sabo," wrote JapNation AniManga.