We're likely to see the first Intel based Macs, specifically iBooks and Mac minis running OS X Tiger 10.4.4.  If announced, Apple would have released the Intel Macs a full six months ahead of schedule.

Most likely an update to the iPod shuffle.

The past two Macworld expos have seen the announcement of iLife (iLife '04 in 2004) and an update in 2005, iLife '05. This year holds the same expectations however there was a brief mistake on Apple's website last Thursday that hinted at iLife '06 and a new addition to the suite, specifically an application called iWeb.  iWeb is rumored to be a web design application with an easy to use interface with drag-and-drop capability.

Apple has announced to it's .Mac subscribers that the service will be undergoing scheduled maintenance during Steve JOb's keynote.  This report has initiated speculation that updates will be implemented to the service.  There's been buzz that Apple will use it's iDisk service as a storage and delivery system for new content tied to the iTunes music/video store.

The rumored plasma displays are said to be powered by Intel's new Viiv technology and Mac OS X Tiger 10.4.4.  Prices are said to be $2599 for the 42" and $3299 for the 50".