From Blizzard
Battle for the Darkspear Islands in World of Warcraft: Forever
Blizzard News · Official summary · Blizzard Entertainment
Stake your claim in the Darkspear Islands, a new 15v15 battleground in World of Warcraft: Forever where teams fight to control strategic points, capture the flag, and earn reputation rewards with the Darkspear Raiders or Theramore Expeditionary Force.