Rhe medium textures are already very well detailled !

Don't think lot more detailled ones wiil change the game looking a lot.
It's Next Gen,runs really well/optimsed.
Fun multiplayer team matches.
And great 3D art.

Id software texture paging is only for terrain : limited !
OR if not let's waut for a demo ?
Caus Quake Wars is very same engine as Quake 4 i played !!

Well gameplay is becoming more advanced in some games:
Assassin Creed combat, Too Human auto move etc ...
Army of two : coop game in some sort.

Call Of Duty 4 : character classes creation for multiplayer and intense
powerfull single story with lot of effects and good shaders on characters, floor, vehicles.

Bioshock : lot of dynamic/static lights with shaders a,d great design, original intriguing story ,lot RPG elements : Great next gen game.

And it's the beginning : so there are lot of other engines as valuable as UT3
that also have their own tools (like the incoming RPG : The Witcher) !