A maintenance period will be occuring on August 25th on the Xbox 360 servers. During this maintenance, the following update will be implemented:
  • Great Arms Race Weapon Rewards - The weapon rewards from the Great Arms Race will be distributed.
  • World of Illusion /R - A challenging new Guardians Advanced Mission will be available to players.

Hopefully, the grind boost will be extended too!

Credit goes to -SHIRO- for bringing us this news. You can discuss this update in this forum thread.