Actually working on a quest project, just takes a lot of time and effort.
As for the AI, it was actually MAIET that made a new AI script for the Challenge Quest, not us.
Personally I want to focus more on cleaning up quest again after I finished a few more projects and stuff from the suggestion list (slowly I am getting there).
So all I can say is, if you wait a bit more you will get a brand new quest and I am planning of working on a new set of pages that are harder but more rewarding as page 65.