I ran across this interesting project:
Repl:
http://www.solve-et-coagula.com/As3Lisp.html
Story:
http://www.solve-et-coagula.com/?p=8
Not a newLISP but very interesting!
And there is also a sheme REPL:
http://www.solve-et-coagula.com/Ouija/REPL.html
Incredible that someone did that...