Blizzard is asking Diablo III players how interested they would be in playing a second expansion to the game.

The question popped up in a survey Blizzard sent to some Diablo III players. Most of the questions were about the player’s gaming habits, but a NeoGAF user grabbed a screenshot of the relevant part of the survey, which asks players to rate their interest in another expansion on the scale you can see above.

Another Diablo III expansion certainly sounds logical given the success of the recently released first expansion, Reaper of Souls, which shifted 2.7 million units in its first week on sale.

Diablo III itself has racked up over 15 million sales since its launch in 2012, with that figure including the Xbox 360 and PlayStation 3 versions alongside the Mac and PC. That means roughly a fifth of all Diablo III owners have purchased Reaper of Souls, and the expansion will make its way to consoles later this year.

For more on Diablo III, make sure you read our Reaper of Souls review.