New Diablo this year.

Community Manager Blizzard Brandy Camel presented the fourteenth season of Diablo III, which was the first in the thematic season.
The manager officially confirmed that several projects in the Diablo universe are under development, and one of them will be seen by the players this year – probably at the nearest BlizzCon, which will be held in early November.

Video with official confirmation from Blizzard Community Manager Blandard