I think Oda is going to pull a twist and Shanks will end up being the final villain and here’s why.
When Jinbei encounter Blackbeard, he is tells Jinbei he’s getting mad at the wrong man. Jinbei is already aware of the Marines involvement and they aren’t a single man, so Teach is likely referring to someone else, Shanks.
Shanks most likely made a deal with the Gorosei/Sengoku to not get involved in MF and to keep the other Yonko out which is why he intercepts Kaidou. This is what enabled WG to actually make a move on WB and excite Ace otherwise it would be too risky to wage war against a Yonko. This is something Luffy will find out in the end shifting more blame onto Shanks for Ace’s death.
Shanks also allowed Luffy to keep the Gomu DF so he could take on the WG and other Yonko while Shanks focuses on finding the One Piece.
Shanks also has a history with Buggy and Mihawk which will allow him to form an alliance with CG, if Mihawk is Zoro’s final enemy then Shanks + CG would fit as the final villains.
Please keep in mind I don’t think Shanks is fully evil, but I do believe he has aspirations to become King of the World and use the One Piece for something somewhat controversial that Luffy won’t agree with.
When Jinbei encounter Blackbeard, he is tells Jinbei he’s getting mad at the wrong man. Jinbei is already aware of the Marines involvement and they aren’t a single man, so Teach is likely referring to someone else, Shanks.
Shanks most likely made a deal with the Gorosei/Sengoku to not get involved in MF and to keep the other Yonko out which is why he intercepts Kaidou. This is what enabled WG to actually make a move on WB and excite Ace otherwise it would be too risky to wage war against a Yonko. This is something Luffy will find out in the end shifting more blame onto Shanks for Ace’s death.
Shanks also allowed Luffy to keep the Gomu DF so he could take on the WG and other Yonko while Shanks focuses on finding the One Piece.
Shanks also has a history with Buggy and Mihawk which will allow him to form an alliance with CG, if Mihawk is Zoro’s final enemy then Shanks + CG would fit as the final villains.
Please keep in mind I don’t think Shanks is fully evil, but I do believe he has aspirations to become King of the World and use the One Piece for something somewhat controversial that Luffy won’t agree with.