Theory I had earlier this week:
Jinbe absolutely demolishing WsW AND breaking the floor may indicate (if WsW recovers) that:
- Brook may take over the fight with WsW
- Jinbe may take over the fight with Jack
If you look at this, Jinbe seems to not even be trying once angry, so I feel like Jack is his next step, regardless if WsW gets back up.
I still do believe he has some sort of Rokushiki recovery technique. Seimei Kikan was used to restore the Kumadori's body and slim Lucci's. Who's to say it can't also heal injuries when combined with an ancient zoan?