The future Yonkou

[Warmmedown]

Blackbeard took "WB's place"
Luffy - Shanks (the goofy one with a perhaps small crew)
Kid - Kaidou (the scary one)
Big Mom - Law? Anybody? Only woman would be Bonnie but she's not that strong yet and doesn't seem like she will be. Only fat one with relevance is Blackbeard.

Obviously there might not be a nexy Yonkou. Could be 5 or the idea of a Yonkou might stop with this generation or just get muddled and become irrelevant if Shanks, Strawhats, Law, Kidd, new WBs, Blackbeard's and maybe others all get/stay strong.

 

[Uchiha]

Was Roger a Yonkou?

 

[Warmmedown]

Huh....always thought the Yonkou just came about after his death for some reason. If he was a Yonkou then I guess Shanks replaced him. WB was the last really elderly Yonkou I'm thinking....idk, for some reason I don't think Kaidou or Big Mom are as old as Roger/WB. So WB could have been the last one of the last gen if there was a gen of Yonkou from Roger's time. Then maybe this middle-aged Yonkou will be replaced by the guys currently in their 20s. So Kidd will replace Kaidou say, Law Big Mom and someone else Shanks. Luffy will not be interested in being a Yonkou as he wants to be the Pirate King. Then he will defeat Blackbeard near the end of the series (damn that'll be crazy) and kind of replace Blackbeard but shortly after will become Pirate King anyway.