Interesting, then how would you propose solving his ice heart plotline and repaying the favor to Robin in Onigashima? Even a headcanon is fine, but I'd like to hear it so that it makes sense to me.
there are 2 possibilities.. the Cp0 capture her or they don't..
capturing her would make sense coz they are summoning WG warships for her and seizing the entire country itself.. so there must be a means of transportation for a Criminal as well..
Soon Kaido will get defeated and they will invade wano.. or that's what Lucci alluded to on the tranponder-snail
until that point in the timeline
zoro and sanji will have their moment with sanji's ice heart arc.. and then finally the Robi rescue operation.