Slimepit Revisited sparked this idea:
Consider polishing already available maps before starting a new one.
SilverCity would be nice with smoother edges, or completely removing the railings from ramps, in the style of Strahlenex. A more shiny, metallic texture would be good too.
Basement is screaming for a larger version! (other than the CTF version)
And i've been dreaming of a Skyway-SilverCity-hybrid since i started playing Nexuiz.