The games are already being sold in Europe, and the people who've bought them are respecting FFG's rights by not photographing and posting the rulebook contents. They're waiting for FFG to release the rulebook pdf's.
Furthermore, if we're looking at a Q4 2014 release, the games will be out soon anyway.
Releasing the rulebooks would make for one awesome preview, so whaddyasay?
(PS: The rulebook I'm most interested in seeing is the Skirmish rulebook, since I'm already familiar with the basic rules behind the Campaign game, thanks to Descent.)