I don't know much about producing industry-level trance, but I would love to hear a little variation in chords.
All I mean by that is by occasionally using a 'D' chord after the 'A', 'E' and 'G' chords in your A-E-G-A four-chord phrase. Not necessarily on every fourth chord, but at the point of direction change in the track (A-E-G-A,A-E-G-D,A-E-G-A,A-E-G-D/F#, for instance.).
If you can do that, the track may well write more chords by itself.
What you've done though is very slick and fun to listen to, and what I've said is purely from the viewpoint of a listener, not a producer.