Why is it that people have the obvious things right under their noses, yet they refuse to see them?
I'm not sure how the Total Codex comes, but what I'm thinking is this. Remember how the Action Sack had all kinds of things hidden on the CD? Remember how they were all cool things?
Now do you know what I'm getting at?
The CD (or CDs) that comes with the Codex could possibly have these interesting things about the watcher on it! Or those guides that come with it might have things added to them that explain things! Or other additions to the Codex could have secrets on them! I'm not suggesting you buy a copy just for that, but if anyone has it already, PLEASE TAKE A PEAK! AND TELL US WHAT YOU SEE!
By the way, if my codex theory is wrong, I think bungie is just playing with our minds.