This is interesting. I hear most about Elixir, with Clojure coming second. As I said above though, those are just examples, if I knew for a certain what is next, I would be learning it already.
In Berlin, Munchen people chat about elixir when they compare some pharma, alcohol industry. As for clojure, only small projects. as for the hype, let's say go. But, majority choose, php :)