From the beginning of this series, the Guild Wars were treated actively only as PvP. I suggest you to add active Guild Wars to Tyria. Here is the concept :
I have reached max level. I have a guild, named A. The leader of my guild declares war to guild B. From that moment, the game gives me the option to participate in the current Guild War, or not. If I say yes, then the war starts. All the opponent guild members that participate to the war have their color changed in red, so they are enemies. The guild war takes place on Tyria map, when pressing M, I can see all my guild members that participate scattered on the map, as well as other objectives.
The Objectives- During the war(or even before it), my guild search for hidden artifacts, placed in secret dungeons, that give all my guild a buff. To be functional, the artifact need to be placed somewhere safe. Where? My guild can buy dungeons, and in those dungeons, the artifacts are kept. By spending gold or other currency, you can buy mobs, buy traps and place them in your dungeon, to prevent the other guild from stealing your artifacts. Every dungeon is divided in sectors. Within a sector, there is a limit of monsters you can put, depending on the creature power. By upgrading your dungeons, raising their levels, you could put there more mobs per sector or more powerful ones. A powerful mob uses the same amount of creature power as several less powerful mobs.
While engaged in a guild war, it is a real danger for the player so while he is engaged, when he enters game firstly, after selecting the character, the game gives the option to warp to the last point where he disconnected, or choose checkpoint. This is because if you spawn alone, there is a posbility to get killed by a group of players of enemy guild. In menu, you could talk to the other guild members about a safe spawn location.
If you are killed for 5 times by a opponent guild player, you are automaticly kicked from the guild war, and all the enemy players appear for you as normal green players. In this case, you are worthless for the war. A guild wins the war when the opponent guild died for 5 times.
For obtaining the artifacts, there could be also some interesting quests.
By winning a guild war, your guild gets experience, its level raises(the guild could gain level as in the case of players), and when the guild is higher level, new types of creatures, more powerful ones, are unlocked for buying.
Ah… I forgot…in the case of dungeons, in the bar, instead of skills, there are mobs that can be set. The numbers above show how many of each your guild has. When you or other member of your guild sets a mob, that number descreases.
In the end, there could also be objectives similar to the WvW ones…
Note that guild wars can be accessed only at level 80, when main quest is over. This is for raising the gameplay time.
What do you think of this idea?