There are two small screens (in the PC Gamer article) of more "completed" areas in terms of world geometry. They both look about on par with Elite Force. There's also a very sweet looking one of an air shaft; lots of yummy curved surfaces.
Based on how design with the Q3 engine works, they very well may be doing a rough cut of the entire game (layout and major geometry), then going back and adding in all the detail.
[ October 21, 2001: Message edited by: Home_Sliced ]