Wait a minute.....

Halo 4’s “Scanned” trailer…

Was that chief? Does this mean the mystery of what his face looks like has came to an end? I’m confused.

It was what he looked like as a child.
And we’ve known that since Halo 3.

We didn’t see his face at all, that was what he looked like at age 13-14.
Do you really think he’ll look the same now?

I think you’re talking about the guy who is dying during the augmentations?
He has number 013 on his arm, so no that’s not John.
We’ve only seen John’s body from the back and his chin/cheeks, but certainly not his face.
And he’s 14 there and not to mention that it is Live Action, so he doesn’t really look like that.