I do find that for about 5 years things seemed to be slowing down. Though I keep seeing it pop up, and new exciting projects seem to pop up from time to time.
Just today I saw an article about Dyna3, a relational programming language for AI and ML that was implemented on top of Clojure.
I miss the Strange Loop conference. I think a lot of Clojure buzz was generated there. Clojure West and a few others so a decent job, but the quality of the talks at Strange Loop were second to none. Not that it was a Clojure specific conference, but it had that focus on elegance that I don't see very often, and the organizer was a something like the Prince of Clojure, if I recall correctly.
I'm still enjoying the language, and all my projects still build and run just fine.
The major frustration I have with the platform is 3D graphics. That's a JVM issue overall though.