Observant users of Reddit noticed that Blizzard became the owner of the domain name diablo4.com . Moreover, it happened back in January 2019. Prior to this, the domain since 2002 passed from hand to hand of various cybersquatters.
A similar domain for the game Diablo 3 was acquired by Blizzard a month before the official release of the game. So such a buyout of the diablo4.com domain may indicate both the close announcement of the game (perhaps at BlizzCon in early November), and banal thrift. But we, of course, believe in the best. Too many rumors about the upcoming Diablo 4 is already walking in the industry.
For example, in late June, French journalists said that the game had already been presented at one of the company’s internal events. So a public demonstration may take place very soon.