Yesterday i been to the recordshop to check out some new records.
I discovered a lot of broken beats technotracks. I also discovered Cari Lekebush with some improved sounds. I also like the stuff Echoplex is making these days....

It's not a matter of trying to make a new sound. I think new sounds are dependent on the evolution of technology... Just put out some creative producers and the newest studio equipment in 1 room and let them freak out.

And ofcourse if you really want to think creative,
listen to other kind of music. Not only techno / dance.
Most inspiration / original things exist from a totaly different genre of music.

Evolvement / improvement is something universal.
If you try to see it more locally, you are eventualy out of options.