In the September 2009 issue of Wired Magazine, reporter David Kushner has let slip the news that Cyan Worlds - referred to in the article merely as "the creators of Myst" - are apparently working on a new online game project involving the live action roleplaying game MagiQuest.
MagiQuest is the product of Creative Kingdoms, who describe their mission as "to intertwine fantasy and reality with the most alluring elements of magic, imagination, hands on experiences, fun, storytelling and gaming into one seamless experience." The MagiQuest game introduces children and their families into a fantasy world where they are assisted by live roleplayers in the completion of various quests, and as the participants play they gain new powers and abilities, permitting them to take on more challenging and rewarding adventures. There are currently seventeen MagiQuest locations worldwide.
Of particular interest to fans of Myst and Cyan Worlds is this short statement in the Wired article:
In August, Creative Kingdoms planned to launch a multiplayer online extension of the game, designed with the creators of Myst. The online version lets players accrue rewards and "powers" that carry over to the physical locations.
The full Wired article can be found here: http://www.wired.com/gaming/gamingreviews/magazine/17-09/pl_games