They want to do a DOOM 3 game with extra stuff. It sounds to me like they want to try to make use of the blu ray and its extra storage capabilities. I know most of you would like to just trash what I just said about blu ray and its future usage but how bout you leave it alone and wait till around 2008. They could add in so much more stuff. Levels and weapons maybe vehicles different textures. I know that some of these things wont take up as much space as others but think of how much more stuff could be in it. I myself havent tried DOOM 3 but it looks good (gameplay matters though). Blu ray has so much potential its crazy.
ID wont be able to make use of the blu ray with this though. Not worth it.