I fear that I'll never be able to show my face in polite soceity for announcing this to everyone. So this could be my final ever news item as the egging shall probably promptly start around about now...
Without further ado, I can announce that the final E3 title to be revealed tomorrow will be for Star Wars - Jedi Outcast. This game will effectively be Jedi Knight III built using a modified version of the Quake III arena. As of yet the timescale for the game is unsure. So it could be Prequel, Original or something completely different like the Sith Wars or after Star Wars. Who knows?
Sorry... I'm just doing my job...
Update: LucasArts has posted the product spotlight for Jedi Outcast here on their E3 page.