World of Warcraft Battle Chest is a collection of World of Warcraft products released by Blizzard Entertainment on October 2, 2007Originally Posted by EpicPhoenix
Blizzard+Activision Was Announced first time December 2, 2007. The Deal went made officiell July 9, 2008
But...back to you´r Pictures.
Battle Chest Published by Blizzard.
Cataclysm will be Published by ''Activision Blizzard''
It STILL dosent says Activision will develop the game
A video game publisher is a company that publishes video games that they have either developed internally or have had developed by a video game developer. < Which is Blizzard in this case