i think even if people were to do it it would have to be self financed as most techno labels and distributors wouldnt even consider putting out a CD single at the moment never mind a mix containing, whilst still great tracks, tracks that are not considered "dancefloor" etc etc... the only techno CD single i know off in the last few years was the Natus and Arkus "Hardcore Salsa" ep which was a huge success for them.

i think people are just gonna have to settle for whatever the individual artists serv up to the plate themselves as it were, a good example being Cari's mix on his website