While World of Warcraft isn't going to free -to-play any time soon, Blizzard is taking steps to open it up to more people by creating an "unlimited trial period." And by unlimited they mean you can play it as long as you want without paying up to level 20. Anyone signing up for a free trial can now play the game indefinitely, though players cap out at level 20. That might seem like a big deal until you consider that, with all the latest expansions, you can play the game up until level 85. Trial restrictions still apply, of course.
Blizzard more than likely adjusted its trial period - which used to be ten days - to draw in more subscribers. The company has slowly been losing subscribers over the last year and it is trying to come up with new ways to reel current and new subscribers in. While the new trial is one way to do that, the company also said that it is trying to shorten the time period between expansions to keep players engaged.