What will Oda do for Reverie arc..? Is there any past arc that would have similarity with Reverie..?

Oda will moving to Reverie arc soon..
After Whole Cake Island arc, SH will move on to Wano Ku Ni..
BUT..
Maybe Luffy will change the route and go for Reverie..

We seen so many familiar faces that will soon gathering at Marie Joie for Reverie which is happening once in every 4 years..
Who will be there..?
Let me list a few names that we already knew from past arcs:
i) Nefertari Cobra (King of Alabasta) and her princess, Nefertari Vivi..
ii) King Neptune (King of Fishman Island) and her sons & daughter (Princess Shirahoshi)..
iii) Dalton (Representative of Drum Kingdom) and Dr. Kureha..
iv) Princess Rebecca & Princess Viola (Representatives of Dressrosa Kingdom)
v) Stelley (Sabo's adopt brother) & his wife..
vi) Wapol (King of Black Drum Kingdom)
vii) Vinsmoke Jajji & his sons & daughter
And new faces that will also attending Reverie..


What past arc would Oda inspired to do for Reverie (if there is any)..?
For me, I thought that reverie going to have similarity as Shabaody Archipelago..
Why..?
I can give FOUR points about that:
i) Rescue Mission - Remember that in Shabaody Archipelago (SA) arc, SH trying to rescue Camy the Mermaid that been kidnap and sold at one of Auction House.. Maybe during Reverie, SH will trying to save Princess Shirahoshi the mermaid that been kidnap by someone or WG because of ancient weapon called Poseidon.. Remember that Camy the Mermaid been caught as Mermaid will get high paid in Auction House.. Maybe during Reverie, Princess Shirahoshi will be the main target since someone might tell WG or other party that Princess Shirahoshi is actually Poseidon..

ii) Gol D Roger's crew member - We seen Silver Rayleigh in SA arc.. Could it be other crew member will be reveal by Oda in Reverie..? Maybe Scopper Gaban.. We did know that Rayleigh teach Luffy about mastering Haki.. And he also help them coating Thousand Sunny.. We also seen that Rayleigh helps SH running away from Kizaru the admiral.. What role did Scopper Gaban will do in Reverie..? Another time skip? What is lack in Luffy right now? Luffy still don't know how to awakened his DF ability.. He also still don't know about 'Hearing All Voices' that could somehow help him in future.. What if Scopper Gaban will help SH somehow in other upcoming arc..?

iii) World Government (WG)'s representative (admiral level) - We met Kizaru in SA arc.. He got a mission to attack and capture every supernovas (Pirates) including SH.. Along with Sentomaru & Pacifista.. They fight every supernovas in SA arc.. What if Oda want to reveal Green Bull in this Reverie arc..? maybe WG ask Green Bull to make sure every representatives at Reverie's meeting been guard  for their safety or he got secret mission to make sure other don't interrupt in WG move to taken Princess Shirahoshi as their true motive since she is Poseidon (one of ancient weapon)..

iv) Warlord - In SA arc, we seen Kuma helping SH by transporting them to another places.. What if another warlord also come to Reverie..? Such as Weevil? Maybe this is the time to Weevil to meet Luffy & claims his title as the warlord that defeated and catch Luffy for WG' sake.. Maybe his true aim/attention is gaining bounty's reward which was the goal given to him by his mother (Bakkin)

Maybe these FOUR points are not exactly the best information that I could think at this time..
But I hope that someone can look at these FOUR points and think clearly..
Maybe there will be the similarity that Oda will bring on this Reverie arc that reflects past arcs..
Or you can tell me more about it in COMMENT below.. ^^