It's too early to say. Clojure's still very young in Lisp terms, so it's natural that it has more hype around it now than languages that were cool 30 years ago. It's also not exactly taking over the world, and I think you're forgetting the buzz Lisp had in the 80s. It will be an innovation in the sense you mean if it has wide adoption and hype in 2050, but it's certainly not anything unprecedented yet.