It has to be said that one of the ways that Blizzard could grow it's sub numbers is the trial version, it gives people access to one of the greatest online experiences in the world (of Warcraft), however, Blizzard has stated that the turn over rate from trial to subbed account isn't very high. I think this is because those playing on the trial account are limited to some of the most boring parts of the game. In my opinion the trial should be expanded a little further, it should be able to teach each person about their individual class: what stats they use and what armor to wear. It should also make apparent to them that they can join a dungeon and experience group content at level 15. It needs to not limit the communication as much as it does it does with regular players (Yes, I'm aware it's to avoid spammers and gold sellers.)
I personally don't know what could be done to help the trial's success rate, but I'm wondering what input you guys have.
What do you think should be done to infuse the game with new blood?