Will Apple hold back?

Apple is likely still holding some back, but for the most part, this is it.

it will have a bunch of steve jobs photos as background images set to default

My guess is that they will be announcing "cloud" features March 2nd.

I think that all of the main features are on here for sure. There will probably just be a TON of bug fixes. Of course we'll eventually see an iWork '11, and a new iTunes that has the new color scheme.

My question is: Will I be able to update this through Apple Software Update, or will I have to go through the pain of another installer through the App Store?