With more than 30 million copies sold, Blizzard Entertainment's Diablo III is a big success. Now, it looks like the developer is planning something new for the game, according to a recently spotted job listing.

SegmentNext that the Blizzard careers website has been updated with a job posting seeking an art director for an "unannounced project" in the Diablo universe.

An ideal candidate would have a minimum of 10 years' experience in an art-related position and a "deep understanding" of the Diablo series.

You can see all the responsibilities and requirements for the art director position here.

Last week at Gamescom, Blizzard had news to share regarding all of its tentpole franchise except for Diablo. We learned about World of Warcraft's Legion expansion, more Heroes of the Storm characters, and saw new footage of Starcraft II: Legacy of the Void's Allied Commander co-op mode. Blizzard also shared new details about Hearthstone: Heroes of Warcraft's next expansion and announced more Overwatch characters.

If Blizzard is planning to announce the new Diablo game this year, one possible venue might be the developer's own Blizzcon in November. Considering that World of Warcraft's Legion expansion is already announced, there would appear to be some space to make another big reveal.

It's possible Blizzard's unannounced Diablo project is an expansion pack for Diablo III, though this has not been confirmed. The game's first expansion, Reaper of Souls, was released back in March 2014.

What kind of Diablo announcement would you like to see? Share yours thoughts in the comments below.