Spoilers on Sam's soul and the war in Heaven

Spoilers on Sam's soul and the war in Heaven

So is Sam's soul okay after being trapped in that cage for so long? And when will we find out just what the war in Heaven is like for Castiel? E!'s Watch With Kristin has some details:

Drewski: On Supernatural, will Sam ever become a nice guy? And what is Castiel dealing with up in heaven?
Yes, Sam will. And I'm told to be patient re: Castiel, that is something we will find out!