Click [url=http://i.imgur.com/zNVQrxJ.jpg]HERE[/url] for proof.
So as you can see, I was able to pre-purchase TTK. I did so digitally on my XBOX 360 despite many sources saying that was not possible. Yet I did not get my Suros pack. The DLC itself works just fine, but no Suros pack in sight.
You can find the emblem and shader at the kiosks. The weapons unfortunately are just green uncommon 160 damage weapons. If you go to the vanguard weapon person they are listed there. Nothing special. Just a way to make people preorder.