You have some weird expectations.
This is just a hype thread for speculating (brings in the regulars) and for the eventual reveal (hasn't happened yet).
When actual gameplay details surface, multiplayer reveal and the beta you'll see a lot more varied posters. Right now, this is just a teaser of the 2nd proper Halo game this generation. Additionally, Bungie and Microsoft have been quiet on the marketing front as yet. No cryptic clues, no viral marketing, nothing. People have already seen Halo this gen, we're now waiting to see to see how they step up the game.
Come the beta and official thread time, I dare you to come back and start bitching about the lack of hype, after the hype engines have been in full gear, not now when we're just waiting for the green light.
Dax tried to calm the hype down in the Uncharted 2 thread a few days before launch. I wouldn't recommended following in his brave footsteps.