Doubtful. Apple hasn't done one in a while. Sometimes there is a rogue audience member that streams to Ustream until caught but best way to follow is one (or more) of the major tech sites live blogs. Apple usually posts the event a few hours after it ended if you want to see it in its full glory.
Like the 2nd sentence on this actual website is "Apple will apparently not be providing live video coverage of the event to the public, but a number of news sites will be on hand to provide text and photo updates, and we're including links to several of them here..."