Just recently, a possible leak for the fourth installament in the Diablo Series was revealed. According to IGN, the possible leak came in the form of an advertisement on page 27 of the newest issue of Gamestar, a German Games Magazine. The leak featured a piece of art from the soon to be released The Art of Diablo Hardback Book which will feature “over 500 artworks from Diablo, Diablo II, Diablo III and Diablo IV, this book features many noteworthy artworks created for Blizzard Entertainment’s iconic action RPG.” The book itself will be released in November just in time for Blizzcon 2019.
A picture of the page is currently on Twitter and Gamestar Magazine has also done a report on the advertisement as well. The Gamestar article states that the magazine will be available for purchase starting October 23. At the moment, there are no announcements for a fourth Diablo game but more could be revealed at Blizzcon. It is also possible, but unlikely that this is a mistake on the part of the magazine as nothing is yet confirmed.
— Julian S (@Berd95) October 20, 2019
Blizzard has also had its fair share of controversy recently due to its banning of a participant of the Hearthstone Grandmaster Tournament. The company has also canceled a launch event for Overwatch on Nintendo Switch, it is currently unknown why but the recent controversy is a possible reason. The company has even received a letter drafted and signed by Democrat and Republican members of congress regarding Blizzard’s decision to ban Blitzchung from the Grandmaster Tournament. There is currently no new information available about this possible leak but with Blizzcon 2019 on the way, it is possible that more information will be released then.