red leg greaves who zeff is based on was a slave so I feel if he is ever brought up again it will to be revealing he was a former slave. and given how far into the story we are it would be a celestial dragon slave
(also it would add to sanji and luffy foils/parallels ( having both similarities and contrasts/opposite
zeff is sanjis shanks
zeff was a slave while shanks was born into celestial dragon family
(also it would add to sanji and luffy foils/parallels ( having both similarities and contrasts/opposite
zeff is sanjis shanks
zeff was a slave while shanks was born into celestial dragon family