As we have seen in latest chapter, the CP-0 agents in Kaidou’s fortress received a call from Rob Lucci, who revealed that battleships are positioned to initiate a World Government takeover of Wano Country should Kaidou fall. Additionally, Lucci ordered his comrades to capture Robin.
I bet Nico Robin will be very close to being captured by the Marines or CP0 (specifically Rob Lucci), and Sanji will be the one to save her.
Evidence and Reasons
1-Sanji is the most equipped to pulling a sneak operation on people who are pulling a sneak operation. Sanji has awakened his exoskeleton like his Vinsmokes siblings. That’s a big power-up on Sanji considering his big weakness is his durability. With these new upgrades (and potential future upgrades), I don’t think Sanji will be extremely hurt to the point of not being able to move, compared to Luffy and Zoro who might very well be on the doorstep to death when their fights are over.
2-This can be a way for Sanji to repay Robin for saving him from Black Maria.
3-SORA : WARRIOR OF THE SEA – In this comic strip, Germa 66, the evil organisation fights against Sora, a righteous Marine. Sora’s hat has a bird on it, and he is accompanied by a Transforming Robot. And Sora’s biggest enemy was Stealth Black.
See where I’m going with this? Sora might be Lucci. The bird on his hat might be Hattori. The robot might be SSG. And Stealth Black is Sanji. But it can just be the Marines and SSG on general. Point is the comic strip might foreshadow Sanji taking on the Marines and now might be a great time to do it.
4-Sanji fulfills his promise to Kuma, and becomes the man the Marines fear the most.