An often critized point is the editing of cloze questions. Hotpotatoe and eXeLearning shows that editing clozes can be done much easier.
My idea is to define a new option of formatting for clozes with a single correct option by adding a starting and ending sign that is replaced by saving the question.
Example: The Quiz module is |maintained| and extended by Tim Hunt of the Open University. You may wish to browse and/or contribute to the Quiz module |documentation|, Quiz FAQ and the Quiz |developer| documentation.
saved as:
Example: The Quiz module is {1:SA:=maintained} and extended by Tim Hunt of the Open University. You may wish to browse and/or contribute to the Quiz module {1:SA:=documentation}, Quiz FAQ and the Quiz {1:SA:=developer} documentation.
I don't know if this is possible from developing aspects.