Quake IV Screen Shots
A German 3D-related site/forum has posted some scanned-in screenshots of Quake 4, which is using the Doom 3 engine. There is also an article that you can just barely read if you squint hard enough. There doesn’t appear to be many real details on gameplay, weapons, etc, except that the gameplay will be more action oriented like Quake 3, rather than “scary” like Doom 3. From the screenshots it also looks like Quake 4 levels actually include lights, so that will be good. If you liked the Doom 3 engine but didn’t like the game, maybe you will enjoy Quake 4 more.