The official website of Guild Wars announced some changes of Gods System. It included Earning Achievements, Favor in Explorable Areas, Special Realms, etc.

Official Press Release:

Changes to Favor of the Gods

When adventurers accomplish heroic deeds, the gods grant blessings to their world, known as "favor of the gods." Soon, adventurers will have new ways to earn this blessing.

Originally, the favor of the gods was granted to a specific "region" of players based on events in the Hall of Heroes. As of August 9, 2007, the favor of the gods will affect all players in the game world, regardless of where they live in the real world.

Earning Achievements

Favor will now be granted based on character-driven achievements. Each time a character achieves the maximum rank in a qualifying title, the world will be one step closer to gaining the gods´ favor.

When a character earns one of these achievements, that character´s name and accomplishment will broadcast in seven locations: the Temple of the Ages, Lion´s Arch, the Great Temple of Balthazar, Kaineng Center, Zin Ku Corridor, Kamadan, and the Chantry of Secrets.

More Information: Guild Wars Official Website