I have been wondering about this for a while. Back in chapter 386, Itachi revelaed few things about MS, particularily about Madara and his younger brother Izuna.:shrug::shrug:
Both Madara and Izuna awakened their MS, and later took the leadership of their clan.:cool:
***
Unfortuantely...
Chapter 578 page 13 second panel
"He is like oro, so he is my enemy
http://www.mangareader.net/naruto/578/13
Later, oro is Resurrected
and then even orochimaru himself finds it weird.
http://www.mangareader.net/naruto/593/7
So he expects Orochimaru to help him though he was the one who...
The end of episode 142 Tobi and Zetsu were talking about the sacrifice of all thse dead akatsuki's members was for "taming" sasuke.. What are their plans for him?