OK. 3 hours.
An hour on Leopard, and all the secret features. A release date might be announced, but probably not.
Half an hour on iLife '08, which will be released immediately.
Quarter of an hour on new iPhone features. I mean, if they had to pull software engineers off Leopard for the iPhone, it makes sense to assume that there will be a few new features that couldn't be demonstrated at MWSF because they weren't ready. If not, it'll probably just be "Oh yeah, iPhone is now shipping".
Half an hour on how iTV is going, how iPod sales are going, how iTunes music store is going, etc. Maybe some new iPods? Probably not. Wrong place, but as if SJ really cares.
Half an hour on the new Mac Pro, with Stoakley-Seaburg, and better graphics card options. New screens to go with them, just a good res bump.
One more thing... New Santa Rosa Macbook Pros, faster CPUs, higher res LED backlit screens, Radeon HD 2600, more RAM, flash memory, etc.
Probably not in this order, but this is my vote.