I've enjoyed using Racket and Clojure, and I see definite advantages to Lisp-style syntax. There are also disadvantages, but I don't think too many parentheses is the main problem, at least not for me. The simple syntax means there are fewer visual cues for language elements, and I think this reduces readability. Clojure is a move in the right direction because it makes more use of punctuation.

Edit: I forgot to add that whatever the disadvantages of Lisp-style syntax, saying it has to die is ridiculous. It is sufficiently useful that it has survived all of these years, and will continue to survive for a long time.