Last week's "One Piece" chapter saw fans read on about how Jack had rampaged all throughout the Elephant island of Zuo, hurting the people of the Mink Tribe in the process. This week, "One Piece" is on a hiatus, but next week's chapter is predicted to again shed some light on what Jack may be after. The chapter may also answer the cliffhanger about what happened to Sanji.

In last week's chapter, Luffy saw the devastation that Jack had caused, rampaging in Zou while looking for someone. According to the predictions that KPopStarz collected, this might dovetail with what happened to Sanji. Since Nami, Sanji, Brooke and Chopper arrived earlier than Luffy's party at the Elephant island, they were witness to what happened between Jack and the Mink Tribe. Sanji tried to stop Jack and was carted off in the process.

Meanwhile, Design&Trend surmised that Jack was actually looking for Momonosuke. As part of thee Four Emperors' crew, Jack and the rest of Kaido's crew have never met Straw Hat Luffy and his gang, and since they don't have an enmity with each other, there was no grudge at all. However, since Sanji – and possibly Brooke – interfered with Jack looking for Momonosuke, Jack had them both carted off when he was finished with his rampage in the Zou village.

There are also speculations that Sanji was actually the one Jack had been looking for. The Straw Hat crew's official cook was slowly built up in previous chapters, like the mystery of his wanted poster – he is the only that has been noted to be captured alive among the rest of the gang. This character buildup is also one of the reasons that some fans use to counter speculations that Sanji has either been killed or is in grave condition.