I'm in no way asking to see it if it exists, but do you guys work from a reference bible?
If not why not?
We have established plot for four acts, but recently we started discussion about enchancing the storyline with additional ideas, add some plot twists, more mystery etc. Main chain of events remain the same, and we only add some depth to it. It's natural process of plot evolution as new ideas pop-up in our heads along with progress of development.