I think we all know Sasuke/Oro's big reveal is coming soon. I'm guessing Orochimaru will dismiss the Edo Tensei soon, and that the Edo Hokage will all fade, including even Hashirama. Oro takes Madara's body, and Sasuke will kill Sakura and say he's siding with Orochimaru despite Hashirama's speech, because he's decided that the best way to implement Itachi's wishes, is for him to become Hokage and literally force the village to acknowledge him thru genjutsu.
He will kill Sakura to make Naruto realize he is serious. And to answer the PMs, yes I did draw the avatar. And no, it's really not all that great