The Bungie announcement wont happen because of Microsoft according to bungies webpage...
Bah, that majorly sucks. Why do that?
it probably looked like shit.
Probably was too awesome.
Probably needed something for next month.
In one of the BWU Bungie said they'd have a really high presence at PAX and motioned for fans to come...but who knows after this, they might push this further if MS has an X08.
It just seems strange that MS pulled the plug on this after Bungie teasing this for the past weeks and months, then after Harold Ryan (Bungie studio manager) posts that message apologizing to the fans about the fact that MS backed out, we see that Don Matrick himself confirms that Bungie is working on another Halo game (or expansion according to others, but where the superintendent character comes into I have no idea...XBLA?), basically stealing Bungie's thunder.
It was strange to begin with that this was relegated to Bungie having its own conference with basically no mention in MS's. Either it's planned or MS is being a dick and with Ghaleon (who claims he knows what happened) saying he quit the Xbox 'MVP' program, it seems the latter.