This is the most post-Halo Bungie thing ever, just a teaser image showing stuff that was already leaked before without any further info, oh well. Hype I guess.
Watch them only talk about this in their next weekly update without actually revealing anything new. I can hear Deej already say: "there is a time and place for everything, but today, is not that time".
I love how they think this is enough to get people excited after the disaster that was the first game (vanilla). "A logo is all we need to get those ship jumpers back on board!"
This is not for them though. This is to gain some attention from the general public and to hype up the hardcore players who will do the word of mouth stuff.