http://www.shacknews.com/docs/press/051605_quakewars.x
Battlefields are perfectly rendered using MegaTexture, a totally new rendering technology developed by id Software that crunches millions of polygons and a gigabyte-scale texture into a single, seamless and un-tiled landscape with unique detail down to the square inch or the un-obscured distant horizon.
I think that's the most important part of the article. To me, that says that the Doom 3 engine has been upgraded the same way the Quake 3 engine was with the Team Arena source code. Now the engine wars get really interesting.
