In perhaps an obvious prediction, more evidence appears to point to new product announcements at the NAB conference during the week of April 19th.
Apple has already notified the press of a media event on April 18th 2004.
The invitation read:
Moving pictures. Moving sound. Moving the industry. Please join Apple for a special presentation at NAB 2004 to see the latest Apple technology
A GIF of the invitation can be found here.
The Los Angeles Final Cut Pro User Group will be having Final Cut Pro Product Designer Brian Meaney and Product Manager Paul Saconne to speak and answer questions on "something super secret" on April 21st, 2004. Meanwhile, other anonymous tips have pointed to at least a Shake Update during the NAB conference.