Jeffrey Kaplan, a lead designer of World of Warcraft has posted a message in the Wow forums telling players that he will no longer be working on World of Warcaft. He goes on to say he has moved on to work on Blizzard's as of yet unannounced MMO project.
Here's a snippet of his post:
Posted by: Tigole Source
I wanted to take a moment to let the community know that I’ve switched roles here at Blizzard to work on our upcoming, unannounced MMO. World of Warcraft has been such a central part of my life these past six and a half years, and it’s success would not have been possible without the tremendous community around it, so I wanted to say thank you to all our players who’ve shared this amazing experience with us so far. Also, while I have served as the spokesperson and Game Director for World of Warcraft on Wrath of the Lich King, by no means would WoW be where it is today without the dedicated team that we have in place. The WoW development team is comprised of some of the most talented and experienced game developers in the world, and it was an absolute honor to serve amongst them, and they will continue to make WoW better than ever. I still plan to be very involved with the future course of World of Warcraft, but will leave the day to day operations of World of Warcraft to my partners in crime, Tom Chilton and J. Allen Brack.
When all is said and done, WoW is still my favorite game. I play it every day. None of that passion is gone. If anything, it fuels the challenge of making our next MMO even better. We know we have some big shoes to fill. So thank you to everyone who has been so supportive over the years, and likewise, thanks to those who have given us pointed feedback on all areas of the game. Without all of the feedback and participation, WoW would not be the game that it has grown to be. Azeroth truly belongs to you and we’re lucky to have shared in your journey. And as always, I’ll still be lurking on the forums and in the game.
Mostly, I just wanted to say thanks. It has been an absolute honor.