Well, Doom is out of the bag. I saw another FPS, certainly nothing like Doom quality, from an indie today at gametrailers.com. Game is named Void War. Looks interesting, and I thought DOOM was dark, lol.
Anyway, the site is voidwar.com and it seems to be made by the guy who made Twisted Metal. Well, he gets a thumbs up for Twisted Metal no matter what :-)
-Joe