During yesterday's weekly livestream event, WarHammer 40k: Eternal Crusade developers slipped out one of the first details about the rumored free trial version of the game. From what was said, players with free trial accounts would have access to more than one faction and class. The team has plans to reveal more about the trial version in a next little while.
Devs have also commented how they're working on the client optimization which would be important with the increased population after the launch of the free version.
You can check out the video below for full Warhammer 40k: Eternal Crusade livestream.