I am in complete shock
This is by far the best song I've ever listened to on Newgrounds. It's far too good for an audio portal, you seriously need to think about getting this copyrighted and getting into a label. I can tell with this song that you really know what you're doing, and that this song just flows naturally.
As always there are things that can improve,
In my opinion the transitions aren't perfect as they should be, when you go from complete rave to silence in less than 20 seconds, it kills a vibe that gets going on the dance floor. You've gotta make sure that when you get things going from Loud to Silent to Loud again that it is all slowly progressing, this then builds up a greater effect. Maybe you should use some laser and FX.
Also the lead that kicks in around 2:00 could possibly have been a bit stabbier, and using an echo effect to perfect it.
I think that the bass after this point also wasn't fully utilized, I believe that it should be quieter, and clubbier, and the kickdrums are perfect until this point also.
Keep one thing in mind, and that is that trance is all about energy levels. Get yourself a theme, build it up, bring it down, build it up again, climax, bring it down, climax, and finish.
I give you this advice not because I'm a smartass, but because this is such an amazing song that it deserves to be played in clubs, utilizing it just makes it better :D
You have some amazing talent, please keep making music and bring back the early work of Ferry Corsten, Vincent de Moor and other gods of trance!