In my opinion, Luffy and Shanks will be the only ones to reach Laugh Tale. Shanks may die there and tell Luffy to keep the strawhat.
Blackbeard will be defeated by Luffy in the arc before (Loadstar).
The final war will occur in Elbaf. The marines are on their way to Elbaf too I guess.
Law will die between Elbaf and Laugh Tale, maybe to perform the surgery on Luffy (god knows).
Kid will be taken outside of the story too but I don't know how.
While I like this idea, I dont think it can happen even as a Shanks wanker lol
The fishman island prophecy exists (which implies Mariejois must be destroyed) and we dont even know if Akainu/Im would ever leave their respective bases
Plus, One Piece has been stated to needed to be used for something in the end against the WG. If we find One Piece or ablut the Void Century after they lose on Elbaf, then it makes virtually little sense lol.
Not discounting Shanks final enemy theories, I just think its a bit more complicated with the WG.