Wow, I'm disappointed and surprised. I played a demo of Jedi Knight for a couple months until I finally went out and bought it. I felt it had some flaws (the graphics and network code were inferior to Quake2 IMO), but it was a great game in its time.
Lucasarts kept delaying the successor, Obi-Wan. I think it was supposed to be out last year, then this Christmas, then next year, and now it's cancelled. I was a little bit concerned given that some of the textures in screenshots looked average, plus, a talented portion of the original Jedi Knight design team had left Lucasarts, but I was still looking forward to it.
Now, for whatever reason (maybe Microsoft threw a wad of money at them to make it an X-Box exclusive?) it is no more, at least the PC version.