The upcoming chapter 842 of "One Piece" may finally see Luffy defeating Cracker. It is also believed that Sanji will break free from his nuptials with the help of Reiju and Lady Pudding.

It is widely known that Luffy is already battling against Cracker. The fight has lasted 11 hours and may continue on should it keep up the same way. The previous chapter saw Luffy adopt an unconventional scheme in order to take down Cracker, but the latter still has a lot of soldier biscuits that Luffy needs to go through. 

However, according to reports, the tables may turn in the next chapter. Cracker's soldiers are limited when it comes to battle as they are unable to fly and cannot deliver long-ranged attacks. This means Luffy can fly above them and take them down by attacking from the sky. This window of opportunity was noticed by avid fans of the manga.

The publication also notes that Luffy is more of an attacker when going against someone in a fight, while Cracker has his defenses up. And it has been revealed that Cracker is not one to take pain lightly, which means he's rather weak when it comes to absorbing blows. If Luffy manages to get to Cracker, he may gain the stronghold against his opponent.

As for Sanji, his wedding with Lady Pudding is still a go. But it would seem that predictions are now rife that Lady Pudding may just be the key to Sanji's escape. It is believed that she will come to the realization along the way that she has to help Sanji leave. It has also been noted that Reiju, a member of the Vinsmoke family, may also lend a helping hand.

Since these are only predictions and nothing has been set in stone, fans should take this news with a grain of salt for now.