LoopRumors claims Final Cut Pro 4 will make an appearance at NAB in Las Vegas in April and reports FW800 support, support for 24fps, improved support for HDTV, built-in 3-D titles, hundreds of effects and transitions, several bug fixes, and overall speed performances
ThinkSecret first reported on features from the upcoming Final Cut Pro in November 2002.
Meanwhile, an anonymous reader claims that FCP 4 will indeed by out in April and "possibly feature some low end features of Shake".