We heard about the possibility a few days ago and now, it has been confirmed.
Firstly, according to an update at the PlayStation Blog , the entire in-depth experience will be on the PlayStation Network on December 21. Yeah, that's basically today. For the same price as the Greatest Hits physical media version – $29.99 – you can sign up for one of the three factions and work towards dealing with more than 250 players on a battlefield. The downloadable version is v2.10 and comes "complete with all the bells and whistles" thus far. Furthermore, to celebrate the release, the rumored full game trial will be free for PlayStation Plus users. "Members can play the game and any of its original modes at no charge for as long as their PlayStation Plus membership lasts." The only limitation: a Level 8 character cap. Still, you will continue to earn experience if you keep playing; so when you purchase the full game later on, you'll finally get credit for that experience.
If you haven't given MAG a try just yet, now might be the time. It's quite the online multiplayer experience.
Related Game(s): MAG