http://www.bungie.net/News/TopStory.aspx?story=weeklyupdateaug19&p=4488675=entire
Bungie said:So here's a thing. Remember way back when we launched the Multiplayer Map Pack and everyone freaked out because we were charging money for the maps that cost us money to make? Well at the time, we pointed out that if you couldn't afford them and you were willing to wait, they'd eventually be free. Well that time is nearly upon us. On August 30th, we're going to make every single new map (Turf, Backwash, Terminal, Sanctuary, Gemini, Warlock, Relic, Containment and Elongation) free for download. Gratis