That is a very difficult question to answer succinctly. From a technical point of view, Common Lisp has never been in better shape, particularly since the advent of Quicklisp. Just about any functionality you would want is available as a CL library through QL. Programming in CL today is easier than it ever was. But on the other hand, it does not seem to be attracting a lot of young blood. The cool kids all seem to be using Clojure or Haskell or Rust or, heaven help us, Javascript.
So I hope Lisp has a bright future, but I wouldn't be my life savings on it right now.
> it does not seem to be attracting a lot of young blood.
In my experience "space" sells to the kids more than money, fast cars
and fame. So thanks for your inspiring writing about your work - I'm
looking for ways to convince the dean to let me switch some courses
from Python (which has jobs) to Lisp (which has excitement, space
adventures and really wild things).
So I hope Lisp has a bright future, but I wouldn't be my life savings on it right now.