Blizzard has posted the season ending soon article, covering all the relevant details from timing to achievements and more.
Season 1 End (Source)
Greetings Champions.
Dragonflight Season 1 will be closing the week of May 2. Here’s what you can expect:
Dragonflight Season 1: PvP
The current season of Dragonflight PvP content will end at 10:00 p.m. the night before maintenance begins in each region. This is 10:00 p.m. PDT for North American realms and 22:00 CEST for European realms.
With the season’s end, it will no longer be possible to earn PvP seasonal rewards, titles, or Dragonflight Season 1 rankings.
Dragonflight Season 1: Mythic+
The current season of Mythic+ content will end at 10:00 p.m. the night before maintenance begins in each region. This is 10:00 p.m. PDT for North American realms and 22:00 CEST for European realms. With the season’s end, ratings that qualify for the 0.1% Thundering Hero: Dragonflight Season 1 achievement will be recorded.
The “Thundering Hero” title and achievement will be rewarded during the following weeks after the season ends, so be sure to wait to change factions until after you have received the title.
All other Mythic+ achievements and rewards can still be earned until Dragonflight Season 2 begins.
Best of luck battling to a glorious finish of the season!
