According to a
story from a Gamescom attendee, another Forge World map will be revealed by Bungie on Saturday, August 21st. Folks at Gamescom explained that after the camera, video taping the Halo Reach Campaign, turned off, Brian Jarrard continued to play Halo Reach and speak to the audience.
He then told everyone that another Forge World map will be revealed. Other attendees also explained that this map will have different climate than other areas of Forge world. A snowy terrain perhaps? As of now, we have no clue. Only time will tell.
As amazing as this sounds, this is still classified as a rumor. However it is a very highly supported rumor. If this rumor is true, which is likely, this Forge World area should be revealed tomorrow to the public. Be on a close lookout for this additional Forge World area.