[Gaiyae]

I'm really interested how characters like Usopp or Robin will grow.

Spoiler:

Everyone in the crew seems to get some upgrade in the water7 arc except Robin, i wonder what kind of upgrade it will be...
And Usopp will most likely have a duel with his father someday. And it's really likely his father is incredible strong. Because he belongs to Shanks crew. And his boutny is probably above 200 milion beli. Because the newest member already had a 100 million belli Bounty. So how will Usopp grow strong enough to beat someone like that? His father has to be alot stronger than Crocodile...