"One Piece" chapter 844 saw Luffy and Nami finally reach Sanji with the goal of breaking him out of Big Mom's castle. However, Sanji put on a farce and fought Luffy, claiming he had now joined the ranks of his family, the Vinsmokes. Sanji will have to make a final decision in chapter 845.
Readers will recall that Sanji has not really switched sides but was being forced by the Vinsmokes to marry Big Mom's daughter or else they would hurt his master, Zeff. It was for this reason that he decided to bluff at Nami at Luffy and even went as far as seriously hurting the latter in a one-sided battle.
By the end of chapter 844, Sanji couldn't hold up his bluff, particularly after Luffy refused to give up. Luffy told Sanji that he wouldn't leave his spot and would go on a hunger strike. In chapter 845, as per the iTech Post, Sanji is going to have to decide whether he will go back and escape with Luffy or if he will push forward with the wedding to save Zeff.
According to the report, it is possible that Sanji is going to reveal the truth to Luffy and Nami so that they would understand his predicament. By doing so, they could collaborate and work on a plan for him to save Zeff and defeat both Big Mom and the Vinsmokes at the same time.
The chapter is also likely going to see Chopper and Carrot continue their own little side story before they get back with the rest of the Straw Hats.
However, there is also the issue of Sanji's sister, Reiju, being in the scene. If Sanji is going to tell Luffy the real threat, he will have to deal with her first, and there is always the possibility of her escaping to warn Big Mom and the Vinsmokes of Luffy and Sanji's true intentions.
