Holy cow I have not been following this game at all, but after reading and watching these previews released this week, I am blown away. Looks to be like a much much bigger BattleField 3 set in a Sci/Fi world, and in a persistent world.
http://massively.joystiq.com/2012/03/07/gdc-2012-soes-planetside-2-gunning-for-the-big-time/
Videos;
FLYING;
http://www.youtube.com/watch?feature=player_embedded&v=KrA3LAAIOc4
TANKS;
http://www.youtube.com/watch?v=rmWyIMXJEiI&feature=related
http://massively.joystiq.com/2012/03/07/gdc-2012-soes-planetside-2-gunning-for-the-big-time/
Videos;
FLYING;
http://www.youtube.com/watch?feature=player_embedded&v=KrA3LAAIOc4
TANKS;
http://www.youtube.com/watch?v=rmWyIMXJEiI&feature=related