Diablo IV's first expansion will introduce a brand-new class in late 2024
https://www.engadget.com/diablo-ivs-first-expansion-will-introduce-a-brand-new-class-in-late-2024-200121982.html
Blizzard has announced the first Diablo IV expansion. Vessel of Hatred will arrive in late 2024 and introduce a new class while revealing the fate of the villain Mephisto.