Developments in the scene for the last five years..?!
Well as I see it "darkpsy" has become more popular with many sub"genres" (forest, horror etc.) A big part of the full-on released has become even more generic and lost touch with anything even close to psychedelic trance, the same has happened with progressive trance. There are of course still quite a few artists that could be "categorized" in these boxes that still produce good music, obviuosly, but it's difficult to find it in the huge pile of released music. But try to search for threads in this forum for requests, it will help you a long way!
Goa is getting increasingly popular again (again, this is as I see it)... well the number of artists seems to be increasing, so its that's a good thing (if u like that kind of music ). But there are many threads here with recommendations for different subgenres, go trough some of them and u should find some good stuff!