So, here’s my question: to what degree did David Mack’s outline for the Destiny trilogy impact upon the writing of Christopher Bennett and Peter David?
I can't speak for PAD, but I wasn't even invited to write Greater Than the Sum
until just after Dave completed his outline for Destiny
. I was sent that outline as well as the manuscripts for the three preceding TNG novels, and was given the task of creating a story that bridged the gap between them.
Peter David's book was written and pretty much set in stone while I was still developing the outline for the trilogy. So it would be correct to say that Peter's decisions influenced mine, and mine influenced Christopher's.
That said, I chose not to interpret all of Peter's Q-prophecies literally.
Make of that what you will.