Diablo 4's Seasonal Content: What Players Can Expect.

Blizzard has confirmed that players will need to create a new seasonal character to access and progress through seasonal Battle Passes, content drops, and more in Diablo 4. This is how seasons worked in previous Diablo games, with characters from past seasons moved to the Eternal Realm, an instance of the game that doesn't have content from the latest season in it. Only some of your Renown will reset each season, and players can skip the lengthy campaign on alt characters once they've completed it at least once.