Well I know this is the internet, but I'll try and somewhat backup the above 'rumor'.

My former guild leader was a former Blizzard employee who was let go just before WOW's release due to financial constraints within the company, and ended up at Lucas Arts. At this time he still had connections with former co-workers at Blizzard who told him, about the upcoming skill changes. These included the mage elemental pet, invisibility etc, this was well before any news was leaked on the matter, and it later came to be. This all occurred last September weeks before I quit WOW.

One thing that caught my attention was he informed us that Lucas Arts had begun work on a new Star Wars MMO. His character over the time I knew him was extremely professional, really easy going, hardly a show-off. So take this as you will, but I have a hard time seeing this being only a 'rumor', time will tell.