Pasquale Rotella (founder of Insomniac Events) made the announcement about 2 hours ago via Twitter:

Working at @insomniacevents on the premier of our new EDC Vegas 2011 Trailer. Excited to share it tonight! Stay Tuned: Insomniac YouTube“

Haven’t stopped working at @insomniacevents on the EDC Vegas 2011 Trailer. I’ll have it up before midnight! Stay Tuned: Insomniac YouTube“

Little change in plan. Decided at @insomniacevents to put up the EDC Vegas 2011 Trailer up at 12:01AM. Stay Tuned: Insomniac YouTube“

Cant wait to see it!