So do people normally announce games there first, or is it a 'look at this stuff we told you about!' kind of thing?
(and can someone link me to the twitter feed? Who is Nick?)
Standard practice is to use PAX to show off games that the public already knows about. It's not a press-heavy event (compared to other events, anyway), so usually announcements don't happen there.
Nick Breckon is a Community Manager for Bethesda Softworks. He basically handles the community for Bethesda, the publisher.
Also, I have confirmation of the Elder Scrolls article in the latest Game Informer:
Me: "@GI_AndyMc Can you confirm the presence of a four-page spread on the history of the Elder Scrolls series in the latest GI? There are rumors." http://j.mp/fkwjbo
Andy McNamara: "@michaelbuffaloe it's true!" http://j.mp/eaR9De
So there you go, it exists. Don't have any other details, but at least we know that much is true.