Diablo General Manager Rod Fergusson confirmed on Twitter Blizzard will be revealing more details about the premiere Diablo 4 Season this week.
From past seasons, we can extrapolate the following:
- Diablo seasons start on Fridays.
- Blizzard usually makes announcements two weeks in advance.
When Will Diablo 4 Season 1 Start?
That said, we have two possible release dates for Season 1 — July 21 or July 28.
Source: Reddit