To start with, one must examine the position of yonko as it stands currently. We have Buggy, Shanks, Luffy & Blackbeard. The latter two will eventually ascend normal yonko status as they aim for PK, Shanks will be dead and Buggy is doing his marine hunting business. It is evident that besides Blackbeard, yonko don't pose a threat to Goofy anymore, which is the perfect chance for Oda to dehype their status. He immediately does that by givinig this position to Buggy, directly stating that Goofy will be aiming for a different league now. So in this short span of time between Shanks death and beginning of the final war, there's room for a new yonko, who's it gonna be?
Gastino has already demonstrated his power by successfully infiltrating Big Meme's territory and defeated two of her strongest commanders at that. It is an astonishing feat when you consider how even Roger the pirate king refrained from fighting the invinicible Katakuri. Who will follow Gastino? Currently Gastino is buying loyalties starting with his fellow scientest Judge Vinsmoke. Gastino already saved his kids lives from Lord Katakuri. Another name that pops to mind is Queen, thus a reunion of former MADS members. Queen might even bring his brothers King & Jack, surely Jack has to get some feats at some point no?
Besides these we have many other candidates, the remnants of the Big Meme piratres led by the eldest son Perospero, we have Bege, potentially Vergo & Monet, Law? etc
This could truly be the rebirth of Rocks
Xebec -> Gastino
Whitebeard -> Perospero
Big Mom -> Smoothie
Kaido -> Vergo
Shiki -> Judge
Captain John -> Katakuri
Whang Zhi -> Bege
The possibilities are endless as you can see. This powerful crew will ultimately be the one to tackle Vegapunk and his new Pacifista army.
You guessed right, yet another clown.

Gastino has already demonstrated his power by successfully infiltrating Big Meme's territory and defeated two of her strongest commanders at that. It is an astonishing feat when you consider how even Roger the pirate king refrained from fighting the invinicible Katakuri. Who will follow Gastino? Currently Gastino is buying loyalties starting with his fellow scientest Judge Vinsmoke. Gastino already saved his kids lives from Lord Katakuri. Another name that pops to mind is Queen, thus a reunion of former MADS members. Queen might even bring his brothers King & Jack, surely Jack has to get some feats at some point no?
Besides these we have many other candidates, the remnants of the Big Meme piratres led by the eldest son Perospero, we have Bege, potentially Vergo & Monet, Law? etc

This could truly be the rebirth of Rocks
Xebec -> Gastino
Whitebeard -> Perospero
Big Mom -> Smoothie
Kaido -> Vergo
Shiki -> Judge
Captain John -> Katakuri
Whang Zhi -> Bege
The possibilities are endless as you can see. This powerful crew will ultimately be the one to tackle Vegapunk and his new Pacifista army.
