Exactly what does Apple mean with it's invitation to tomorrow's special event saying "We still have a lot to cover."? Many are speculating that Apple may reinvent their smart cover to include a keyboard and other functionality. I certainly think we are in for a surprise in regards to covers but here's what we can be pretty sure about.
Apple will almost certainly launch a iPad Mini with Retina display and redesigned iPad 5 to more closely resemble the form factor of it's smaller cousin. Stage time will also be given to OS X Mavericks. We are hoping to see an update for the Apple TV and we'd like to see a refresh of Apple's iLife suit for iOS to unify the design with that of iOS 7.
We'll know soon enough!