The first (2010 edition) had about 500 pages. The second (2012 edition) had about 1400 pages. The new 2017 edition has just over 2000 pages. It will be free, of course. However, on RPGNow/DriveThruRPG it will be “pay what you want” with a suggested price of $0.00 — as items listed as free do not show up in their stats. With luck it will be available for download later this week.