Source:
https://eip.gg/news/leak-diablo-ii-resurrected-will-be-presented-at-blizzcon-2021/
Following close on the heels of reports that Blizzard Entertainment was potentially working on a Diablo II remaster, a fairly credible source has claimed that Blizzcon 2021 will include some sort presentation on the rumored remaster, with the title of “Diablo II Resurrected”.
The leak comes courtesy of @Kaiser499 on Twitter, a gaming focused account that previously leaked Diablo IV and Overwatch 2 before Blizzcon 2019. Given that their leak in 2019 was on the money, it wouldn’t be a surprise if they’re telling the truth about the Diablo II remaster as well. The tweet contains info on other Blizzcon 2021 presentations as well