There is a list of development tasks for this project at https://meta.wikimedia.org/wiki/Abstract_Wikipedia/Tasks.
I suggest we add a series of tasks to the above document in a new development part named PP2 that would start concurrently with part P1. Part PP2 would be "about producing a broad spectrum of ideas and alternatives from which a program for natural language generation from abstract descriptions would be selected."
I have created a draft part PP2 at https://meta.wikimedia.org/wiki/Talk:Abstract_Wikipedia/Tasks#Development_Pa... .
As I am sure there are many problems with this very initial draft, I would ask that the community edit the draft and provide comments, objections, etc. in the talk page as they see fit.
Thanks,
Chris Cooley