Gotta disagree.
I think Oda is moving on to give Luffy the yonka status and then making Zoro, Sanji and Jinbei Yamato as his 3 commanders
G5 is just that strong and Zoro will not close the gap but the gap will widen once Luffy has full control over it.
Nah, Oda isn't going to remove decades old portrayals of Luffy/Zoro, Zoro/Sanji and Luffy/Zoro/Sanji
Even this arc, we had panels of Luffy/Zoro duo moments against seraphim + fighting same opponents. So clearly he isn't moving past it.
People thought Luffy and Zoro gap became insane to the point where Zoro can't dream of closing it, once G4 and especially future sight happened.
Yet, Zoro got big powerup via training with Enma and they ended up having similar hype/showings in rooftop.
In the same arc, when Zoro started looking too strong, Oda reinforced Zoro/Sanji portrayals through them fighting the 2nd and 3rd strongest underling, and having their duo moments.
The gap can close once again, similar to how it closed in the raid.
Luffy has G5 sure. But Zoro also has lots of room to grow.
Luffy has almost maxxed his haki, most of his growth now would come from mastering his awakening/G5 (as far as we can see at least).
Zoro has room to grow his conqueror's haki (he just awakened it), gained a mode which overuses advanced conqueror's haki, can gain advanced observation haki (FS or something else), has barely even scratched the potential of Asura.
And Asura is amongst the biggest powerups in the series, only G5 and logia DFs can even compete with how much of a powerup is provided to the user.
Addition of Jinbe merely added few more portrayals.
Portrayal of Luffy/Zoro/Sanji/Jinbe, Zoro/Sanji/Jinbe, Sanji/Jinbe