Pedantic note: #^ for metadata has been deprecated for at least 2 if not 3 versions. ^{ and ^:x aren't special. It's just ^ (reader metadata symbol) followed by a map and keyword respectively. Other things can also be metadata (for instance you can tag something with a classname to indicate a type hint).

You also missed out a few of the syntax quote stuff.

So, other tokens are #{} ^ #() #_ #'x ` ~ ~@

Full details: http://clojure.org/reader