Excellent! I had just finished re-reading 'The Making of Doom 3' by Steven L. Kent and thought to myself when Doom 4 would be announced. Five minutes later I read THIS on my computer :-D

OOOOH COOOOLL WOOOHOOOOOOO!! I do not know what is more great, Starcraft 2 or Doom 4 :) I remember than when doom 3 was announced I also got grazy, specially because I played the first two, and the ID games never left my mind... (I am not a fan of shooter games, but Wolf3D and Doom have both a place on my hearth...)

I will love to see it :) I wanna play!

And of course, this mean that another cool thing will happen: Doom 3 engine will be released Open Source :) (ID release its previsious engine open source after the release of the lastest engine, always used on the lasted and coolest flagship game...)

John Carmack rules! (btw: I love Commander Keen series too!)

Hehe, Hélder you are a professor right?
An open source engine like the one of Doom III would indeed be a highly valuable resource for your students and for (hobby) game developers, especially with the bump mapping and the particle effects as far as I remember the game.

What I am hoping is less scripting and therefore more intelligent enemies like the game F.E.A.R. showed us. Not only dark room -> flickering light -> zombie behind you -> shooting -> enter next room with blue card

I agree with you, with both statements :) Altough I do not liked FEAR much (as I said, shooter is not my style), I got amused when I saw the first soldier jumping around rolling into a intelligent way, instead of just doing something scripted or stupid (I mean, he jumped from behind a counter, rolled shooting and finished his move behing another object, like a real soldier would do...)

Naaah, I am not a professor, I am the student :)

This is exciting news. I am surprised myself to see 2 big projects going on at once. Maybe idTech5 really is that much easier to use that they can do something like this.

I'm curious to see if they use the MegaTexure technology to create huge Mars landscapes; it certainly would lend itself well to creating an "outdoor Doom" where you have to manage your air supply between stations or at least while you are not inside your vehicle. Day-Night cycles on the surface of Mars would present some interesting contrast (even if not dynamic cycles); freezing sub-zero nights and burning hot days. Traveling between buildings, much like in Doom3 could be expanded to very wide environments with fun vehicle game play to break up the monotony of corridor crawling. There could be less enemies during the day but the heat could exhaust your air faster.

Dropping the slow mundane tasks of searching through lockers for audio files and PDAs in favor of a couple more imps on the screen would be a nice touch. There's a real opportunity here to add an element for everyone. Players who like the old run-and-gun can drive straight to the next building and start killing while the more RPG style players are free to roam the outdoors in search of better weapons, armor, item, ammo, and maybe even a little perk like an expansion for your air tank or a hidden biosuit powerup. I'm sold! where can I buy it? =)

(can you tell I'm excited?)