I already know how the Sasuke vs 4 Kages conversation will look like...
It will go like this!
Hashirama: "Wtf, this **** again!" (he was already Edo Tenseid at part 1 by Oro, same goes for Tobirama)
Tobirama: "Yeah bro, wtf, can't we die for real for once?!"
Sasuke: "Now that we have called on for you, I have some questions for you!"
Minato: "Who is that kid?"
Hashirama: "I don't know, some fodder probably!"
Hiruzen: "That is Sasuke Uchiha, the brother from Itachi Uchiha!"
Tobirama: "Who the hell is Itachi, some other fodder?!"
Minato: "Well well, so you are the little brother from Itachi ey, the last time I saw ya, you were still a little baby..."
Sasuke: "You... You knew me when I was a baby?"
Minato: "Yes, since I am the..."
Hashirama: "Sorry for interrupting you, but what is that huge chakra I am sensing?"
Tobirama: "I sense it too, such chakra, amazing!"
Hiruzen: "Could... Could it be..." (looks at Minato)
Minato: (smiling) "Naruto, you have done great, you truly surpassed your father!"
Sasuke: "Wh... What?"
Hiruzen: "You don't know Sasuke, Minato is... Naruto's father!"
Hashirama: "Your son sure has the Will of Fire, Minato!"
Tobirama: "He would be a great hokage!"
Hiruzen: "But the reason why we are Edo Tenseid is wrong, and it is not normal Naruto has to use so much of his chakra... what is going on in here? And why are you with Orochimaru, Sasuke?!"
Sasuke: "Eum, I, I can explain, Eum, Eum..."
Orochimaru: "Kukuku, let me explain it too your four, you can't do anything about it since I have the control over your bodies kukuku..."
*Explanation by Orochimaru follows*
Hashirama: "What! Madara is still alive?! I'll kill that bastard right now!!!" (Oro loses control of Hashirama)
Tobirama: "Well, since I am back now, I want to bang some *****es, c u all!" (Oro loses control of Tobirama)
Hiruzen: "So, Orochimaru, you really thought you could hold us under control? And you even mentioned now Sasuke has tried to kill Minato's son Naruto..."
Sasuke: "Ye... Yes...?"
Orochimaru: "We're screwed!" (Oro loses control of Minato)
Hiruzen: "Well, this will be amusing!"