Two-year Improvements

During the span of two years, each member of the crew trained and worked hard to become stronger. Each member had their own kind of training while they were away.

Luffy trained with Dark King Rayleigh. The ex-vice captain of Gol D. Roger helped Luffy master the art the Haki. For two and a half years Luffy mastered the basics of all three Haki's. He was able to incapacitate the fake Luffy on Sabaody Archipelago using his Haki of the Conqueror. He was also able to beat a pacifista in one punch by coating his fists with Haki.

Zoro, while being stuck on an island, was trained being trained by Hawk Eye in the ways of the sword. Upon his arrival on Sabaody Archipelago, he has appeared to have a scar on his eye. Further on in the story, Zoro was able to cut a whole pirate ship using his three sword style. He was able to cut one of the Kraken's tentacle into many pieces during their trip to Mermaid Island.

Sanji has changed a lot as well during the past two years. He has become more of a womanizer because of his stay on Newkama isalnd. He has also gotten a new beard. In the recent episodes, he can create his "Diable Jambe" without having to spin and, eventually, he was able to use the Skywalk like the CP9.

Nami, Usopp, Franky, Robin, and Chopper have yet to portray their main abilities; although, it appears as though Nami can send mini dark clouds enclosed in bubbles to their enemies to shock them with a huge amount of electricity, Usopp can use new pellets that can grow to fully sized plants that can eat their enemies, Franky has grown significantly in size due to some blue prints he found inside the laboratory of Vegapunk, Robin has shown the ability to increase the production with her many hands, Chopper has showed the use of Guard Point without the use of his Rumble Ball.