Are we posting predictions here? Let's see...all the Macs are up to date in my opinion, except for the Mini, which could see a Core Two Duo update.
iTV is a given, as Jobs has already foretold its coming.
I believe Apple when they say that Leopard is due in Spring. So at MW, I expect we will hear updates on Leopard's development and how much developers love it, and there will likely be some jabs at Microsoft, and a showing of the David Pogue video which shows how Vista copied OS X elements.
Jobs will talk about how everyone loves the Get a Mac ads and will show a new one.
He'll talk about the success of the iPod line, point out that Gates took his advice in making a closed ecosystem with Zune, and possibly re-emphasize the increased sexiness of sharing an earbud versus beaming a song. He'll mention that the Shuffle has exceeded their wildest expectations, Nike Plus iPod is a critical and commercial success, and that Disney is thrilled with posting movies on iTunes.
Apple will introduce iLife and iWork 07, and iWork will include a spreadsheet App.
That's about all I'm expecting right now......