Wow, this site is on a roll and so is Huxley!
Tons of new media, even the website design for the future upcoming site!
http://huxley-evolved.com/content/view/39/1/
Agreed with loop, you shouldnt take these images as final or even not to buy the game. But more than likely your right it will be UT2007 with 5,000 people, 100vs100 battles, PVE, ect.
But no RBX
Well, those images are not official, and clearly dont represent Huxley as they wish to show. As for the release date its been "in 2007" for a very very long time.
But it looks like it will be a 2008 launch.