During the timeskip outside of haki each of the monster trio got stronger
- Luffy with his devil fruit gears
- Zoro with his swords specially shusui
- Sanji with just strengthening his body
Post wano now they each have their biggest and likely main power ups of the series
- Luffy with his final gear
- Zoro with his strongest sword
- Sanji with the biggest physical power up outside a devil fruit
Luffy still needs to master and fully understand what his devil fruit is
Zoro is going to need to figure out how to make enma black
Sanji doesn’t need to further master his exoskeleton but will make hotter flames