I think psytrance has changed a lot over the last decade. Most obivous if you compare the same artists
Outsiders 2010
Outsiders 2019
Astrix 2008
Astrix 2016
U-Recken 2006
U-Recken 2019
I intentionally give the examples of the most manstream kinds of psy, they reflect what I think are the trends.
A lot has happened over the last 10 years or so, transition from hardware synths to 100% software production (very different sound overall, more possibilities for sonic manipulation, lesser significance of the individual character of the synth, in the 00's it was almost compulsory to use Access Virus and Nord Lead but there is no such thing as "the default psytrance synth" now), evolution from very melodic tracks (second half of the 00's) to minimal (first half of the 10's) to quite busy tracks with lots of synths and SFX but little melodic content (now), some subgenres died, some emerged.
Ofc the core concept stays the same - hypnotic bassline, trippy/sci-fi sounds and such but the details change a lot.