Tetsuya Mizuguchi, COO of Q Entertainment (Lumines, Rez), recently left the studio to focus on other "projects." It seems that project isn't even related to making games — at least, not officially — but rather, he's now teaching people how to make 'em.
Mizuguchi is now a professor in Keio University's graduate media design program. While he'll still continue to support his former studio as an advisor, there are no definite plans in creating any actual games.
Q Entertainment was formed in 2003 by Mizuguchi and former SEGA employees. Their first game under the label was the critically-acclaimed Lumines for the PSP in 2004.
In addition to Lumines, Q Entertainment has also released Every Extend Extra, Child of Eden and Meteos Wars. The studio is known to be at the forefront of the rhythm music genre and has even created their own "virtual" singing group the Genki Rockets.
Here's to hoping his students have the same vision he does when it comes to games, no? Good luck and congrats on the career shift, Mizuguchi-san!
Source: Siliconera