At present, in the plot of One Piece, the battle between Big Mama and Kidd and Luo has come to an end, if there is no accident, the two supernovas will end in a fierce victory, and then there is only a key battle left for Luffy vs Kaido, if Luffy can also defeat Kaido, then the Samurai Alliance will completely bring the two four emperors down from the altar.
Looking back at the entire Battle of Ghost Island, the combination of the three supernova captains is a key part of winning this major battle, after all, the key people who defeated the two four emperors are the three of them. You Haimi said that since the three of them were so powerful together, could they fight against the Blackbeard Pirates together in the future? This idea, while good, is almost zero in likelihood.
The three have conflicting purposes
First of all, the ultimate goal of the three supernovae is conflicting, Luffy's dream is to become One Piece, and it happens that Kidd's dream is the same, but "One Piece" can only have one person, so the two of them must be competitive rather than allies. In contrast, in this Ghost Island War, the reason why the three people will join forces is that they have the same purpose, that is, to overthrow the rule of the old four emperors, and the hatred of the three people for Kaido is almost the same, so it is reasonable to join forces.
As for the future of defeating Blackbeard together, the probability is very low, because of the three, only Luffy has a deep hatred for Blackbeard, and the other two do not have much intersection with Blackbeard. The only possibility for the three to join forces is because Blackbeard is the biggest enemy in the way of One Piece, so it needs to be conquered together.
But if I remember correctly, Luo did not say that his dream was to become "One Piece". Even if Kidd and Luffy both want to become One Piece, I think they also want to defeat Blackbeard through their own efforts and become the new One Piece, after all, this is more convincing. As mentioned above, Kidd and Luffy's dreams are destined to be competitors rather than allies without changing.
The personalities of the three captains are incompatible
The second is the personality of the three captains. The people who can become captains must be leaders, and this is especially true for successful captains. In the plot, it has been made clear many times that although the three are in an alliance relationship, they all have a "heart that becomes the protagonist". Even at the critical moment when Kidd and Rowe are fighting the Four Emperors together, they will talk to each other, and in the final analysis, it is still a matter of personality, no one fully obeys anyone, and some are only short-term cooperative relations. Therefore, the personality discord determines that the three cannot become "permanent partners".
Kidd and Rowe's combat strength can no longer be underestimated, and it is impossible to join forces with Luffy
In the end, Kidd and Rowe's combat strength is no longer what it used to be, and the combination of the two of them to bring down a four emperor is enough to show that its strength should not be underestimated. If they and Luffy join forces against Blackbeard again, it will appear that the combat strength is very unequal, and No matter how strong Blackbeard is, he will certainly not be able to resist the joint efforts of the three supernovae at the same time, and Oda Sensei will definitely let Luffy lead the Straw Hat Regiment to personally conquer the Blackbeard Pirate Regiment, after all, there is only a "bond" between the two of them.
Considering only the problem of combat strength, Oda will not let Kidd and Roe help Luffy attack Blackbeard. However, if it is to attack the navy or the world government, perhaps the three will be in the same frame again. The Navy or the World Government is the common enemy of the three, and it seems reasonable to have the same enemy to join forces, just as the three of them have hatred for Kaido, I don't know if Oda will let the three of them join forces again and fight the Navy together? It was impossible to fight Against Blackbeard anyway.
Do you think the three of them will join forces to attack Blackbeard? Please comment in the comments section.