I'm expecting iOS6 and Mountain Lion previews and release dates. (Hopefully not the generalized "summer" they usually do.
Mac updates also seem to be confirmed at this point. How much time will be spent on them, who knows? I don't want to get into which ones will be updated and how much of an update each gets. Let's just let it happen when it happens and complain then.
I don't expect an iPhone 5 yet. I suspect the New iPhone will be released when iOS6 is out so they can put it right on the phone day 1. But would they do the same for the Mac's? Probably not. Lion is great as it is.
I assume both iOS6 and Mountain Lion will be free. Yeah, free. Sounds strange, but Apple did say they were going down a new path now. If anything ML will be $30 at most. iOS will be free no matter what. I wouldn't be surprised if ML was free though. Since OS X updates are going to be yearly now and they're integrating update into the App Store, they'll probably want to push them right to your computer as soon as they release them. And at this point there's no big reason to charge anymore. Especially since it's now download only and their money comes from hardware. OS X is just part of the hardware. Part of the whole widget.