I think of Lisp not as a concrete programming language as but essence of programming itself.
I think that main feature of Lisp - Lisp is "syntaxless". And I mean not CL or Scheme or Clojure. I mean some "abstract Lisp"
But syntax sugar is not so bad in itself - you can treat python and javascript as versions of "infix scheme", you can treat java as horrible lisp-macros library, you can treat Perl as especially horrible Lisp with some funny inclusions.
I think that Lisp is a start of the road, not the end