Thoughts about the chapter:
You all do realise that we could see one or two of the holy knights in the next chapters? But only if we are lucky and if Oda wants to give us this treat at last.
Why I am thinking this is, because we still have Carlos, who is after Shirahoshi, although Mjosgard ordered him not to take her as his own. So, the situation around the mermaid princess is not solved, yet and Carlos is heading her way right now.
And if you go back to chapter 1054, Akainu stated that in this incident the holy knights mediated between Mysogard and Carlos.
I could well imagine an appearance of one of them calming down the situation right when Carlos makes his next move to apprehend Shirahoshi.
By the way, have you noticed how Iva reacted to Saboβs report? Look at him β he is not only relieved and happy about the successful mission, but he outright basks in the pain, the emperor imagines the CD will face, when their food resources are going to deplete and they experience hunger and poverty for the first time.
This is something very interesting, if you look deeper into it. Him gleefully anticipating their misery doesnβt look like an Iva that is relieved about their mission being a success, but an Iva, whose build up hatred towards them lets his feeling for revenge run amok. My take is, that there is a deeper backstory. (Iva having to suffer under the CD and experiencing hunger and poverty in some form or another.) And maybe we will get to see it in the near future as a flashback.