First off, Matt just marked his seventh year, seventh month and seventh day at Bungie; yes, it's Matt's Bungieversary; he posted it himself at Bungie.net.
And seemingly as gift on this occasion to the ranks of rabid Halofen, he's offered a few words of encouragement in the HBO forum. In response to demands that the Halo Updates be resurrected for Halo 2, he said:
I think the forthcoming trailer is going to be a lot cooler than any silly little update I could write, but those little missives will reappear one of these Fridays.
So, not only a trailer (12 days now) but also Halo 2 Updates sometime in the future. Woo hoo!