My submission was selected as a semifinalist. As a result, a lightly updated version of the paper will be included in a book distributed by the Mars Society. I've just sent off the formatted document to the editor with barely a day to spare.
The submissions I've read so far are excellent; the book will be well worth picking up once it comes out. The Society plans to release in dead tree and e-book formats.
I had the chance to meet a fellow competitor (Dr. Jeff Greenblatt, Emerging Futures LLC) in person at this year's ISDC. He is a well-deserved finalist. Finalists will be presenting at the Mars Society Convention at the University of Southern California, October 17-20 2019.
