Offer up his flesh when his stamina ran out lol
Killer escaping after Kaido wrecked them was a bonus. It's not like anyone in the prison had a reaction as to how he ended up back in custody.
It's not a hypothetical argument so much as an exaggerated point to compare to WCI, where the entire plot centered around the Vinsmoke Charlotte marriage. Sanji hit every development checklist and Zoro's role in Wano doesn't compare. WCI was also the third important arc for Jinbe who technically isn't with the crew yet.
Zoro had the shortest recruitment arc and shortest flashback, and his only real follow up was Thriller Bark. Compared to Nami joining and getting Along Park, or Robin joining and getting EL not to mention an obviously big future plot. Zoro has been around the longest and hasn't wavered, so I would hope you're really not trying to disagree that he should have a lot more if this is the "year of Zoro."
At the end of the day Oda still chose to write WCI, just like he chose to write Wano.
Yes, WCI did focus alot Sanji and it should have. The Vinsmoke family played a major role in the era and Sanji is a Vinsmoke. It revealed why Sanji is a chef. Unlike Wano, WCI was a much smaller era. Half of the Straw Hats weren't even there. Wano era is huge. That requires more characters so alot of characters will receive some focus. Remember, Wano is not over. You and others talk like the era has ended. It's far from over.
More importantly, Zoro is a combatant. He has always shined the most during battle. The main battle hasn't even begun. It will be a huge battle, possibly the biggest battle in the One Piece world. Oda is not done focusing on Zoro. In fact, how he's developed Zoro has led up to this point in the manga. That includes not only the development he has received in Wano but his deep connection to Wano that is slowly being revealed.
Look at it:
- Zoro is on his journey to be the world's strongest swordsmen and he's on an island full of swordsman
- Zoro's basic swordsman style comes from Wano
- all three of his current swords, one he received at the beginning of his journey and the other early on as a straw hat, were created by blacksmiths from Wano
- he was given one of Oden's swords
- Wado and Emma were created by the same person
- he possessed Shusui, Ryuma's sword, who is the most famous swordsman from Wano
- twice he's been asked if his three sword style is an act
- it was hinted he could forge enma into a black blade
- and the list goes on.
This doesn't even include his connection to Ryuma that's been hinted.
Clearly, Zoro's development and focus is not done.