I would say the only trend I'm consciously aware of is a tendency to "cast off"certain things and only focus on the items that truly "hit me". I still have an appreciation of everything in my past, but there are only select items that remain "in the now". Every once in awhile something sifts its way back to the surface, usually for a brief visit and then it returns back from whence it came.
The good news is that I'm still discovering music that thrills me, some new, some older items I was never exposed to. Luckily, the adventure continues, even if the big discoveries are in the past.