John Gruber over at Daring Fireball wrote a post about how Phil Shiller gave him a 1 on 1 keynote using an iMac for Mountain Lion. Phil did this personal keynote with many more journalists and explained how Apple is starting to do things differently. The big keynotes are going to reserved for major announcements like the textbooks, iPad, iPhone, and anything monumental that they have in store. Definitely a great read and an inside look.
Back on topic, 1080p seems like a reasonable guess as a Retina Display would demand higher quality content but I doubt they'll make banners and name their event hailing 1080p.
With all the purported upgrades to the iPad this year, I honestly can only think of "it changes everything...again" as the best headline 😀