The event may include the long awaited iWatch with some sort of health monitoring system. We are awaiting some of the new updates, announced at the most recent Keynote, integrated into the new hardware as well.
Missed the Keynote? Here are the Highlights
One of the rumors is the the iPhone 6 will have a larger screen. Makes sense since that is where the market is turning.
The smart-watch market still has barely been tapped and there is much Apple can do to add quality to this type of equipment. I wouldn't be surprised if we are looking at a pretty hefty price attached to it, though, because of the quality.
Keep checking in and I will let you know the best Live Blog to watch the Keynote, since most of us have day jobs but still want to see what's going on. :)