Also, as an adjunct of sorts, are there any "one hit wonders" where you really wish they would come back for another go at Trek?
Some of us worked hard to convince Janet Kagan to write something Trekkish after "Uhura's Song". I was sure she had more Trek to share, although she claims not to have been much of a ST fan. (You'd never guess from reading her book.) Sadly Janet died a few years ago.