Originally Posted by ask me anything
Unlike the 4 Hokages who where instantly sealed via ET into their edo bodies, the other half of the kyuubi is slowly creeping out of the Death God and fusing together with Orochimaru. It's gonna take a little time (2 chapters of the hokages talking) for it to happen. The hokages will lay out their defense for why the village and shinobi system are justified and needed to create and protect the peace, with each Hokage giving an example of such from his own generation. As soon as they finish their argument, the kyuubi will finally take over Oro's body, suppress his personality, and lay out his counter argument giving his own examples to rebuke the hokages, considering he's lived through ALL of their generations and then some.
So yeah, basically the shinobi world is on trial right now. Hokages are the defense, Kyuubi is the prosecution, and sasuke is the judge, jury, and executioner. I bet Juugo and Seigetsu will come to opposing conclusions on who's right and wrong.
The kyuubi was sealed with minato's soul, showing a union of the two when they were sealed... so it's more likely that minato has the other half of the kyuubi with him IMO... Meaning we can see what minato can do with the power...
EDIT: there are actually six zetsu's... four for the edo tensai and one for Oro's new body... Then the last must be for sasuke IMO... He will read the sage's tablet and learn how to awaken the RG... and by juugo absorbing the last zetsu then injecting it into sasuke... he will gain hashirama's cells and awaken the RG and be able to use some mokuton too...
EDIT#2: and in all likelihood, Edo Tensai is a Senjutsu technique IMO... Kind off topic, but the fact only two sages are capable of actually using it while tobirama who created the technique could not... And the fact that the bodies never lose chakra, as if they draw their enemy off of the planet itself... Also, the bodies are made of earth, so like drawing nature energy to endlessly power them, there is infinite amount of earth to recreate them when they are damaged too... Because of this and some other factors, I think it is very likely that Edo Tensai is actually a senjutsu technique...