Pitiless #@L# shared the following e-mail, which he reports having received from a Bungie employee.
I'm still here! I don't have a lot of time to do personal email because my only Internet access is at work and we're pretty busy here (and will be until September). Thanks for the kind words about the Gamestock material - actually the movies and screenshots are pretty lame because we were focusing on the live demo. When we start putting together real press material (and not relying on the MS PR flacks to do it for us) there will be a lot more impressive stuff available.
Is it possible, then, that some of the things we're seeing weren't intended by Bungie as special hints? Still, this means we can possibly expect to see some truly stunning things with Fanstock and E3. Thanks for the info, Pitiless!