The next version of Nexuiz will feature some new high-end graphics improvements. One of these will be deluxemapping, but it's not quite surprising since we already know that very well. Same goes for offset- and reliefmapping.
But some new graphics effect that was never there before will come: the realism of the bloom effect will get vastly improved using Outerior Volumetric-Eccentric Radial Kinematic Latrocity of Light, short OVERKiLL. Just look at http://mensa.ath.cx/~polzer/temp/%62%6c%6f%6f%6d.jpg
Another nice effect, which is meant to be combined with v_psycho 1, is Anti-Texture Interior Surface Lowering, short AnTISLow. This basically is a minor optimization to make Nexuiz run better on the ATI drivers and has not much effect on NVidia cards. A demonstration of this is available here: http://mensa.ath.cx/~polzer/temp/%73%75%72%66.jpg.
So you can expect much of the upcoming release, and you won't be disappointed!