Demon Hunter:
Demon Speed Party and raid members within 40 yards are infused with demonic speed, increasing haste by 3%.
Druid:
Mark of the Wild 200 Mana, 40 Yard Range, Instant Infuses a friendly target with the power of the wild, increasing their Versatility by 3% for 1 hour. If target is in your party or raid, all party and raid members will be affected.
Mage:
Arcane Intellect 200 Mana, 30 Yard Range, Instant Infuses the target with brilliance, increasing their intellect by 5% for 1 hour. If target is in your party or raid, all party and raid members will be affected.
Monk:
Legacy of the Emperor 20 Energy, 40 Yard Range, Instant You extol the words of the last emperor, increasing mastery by 54. If target is in your party or raid, all party and raid member will be affected.
Warlock:
Curse of the Elements Your damage curses the target, increasing magic damage taken by 5% for 1 min.
Shaman?
Not listed/known yet. May or may not affect mage dps