When you've conquered Castle Cyrangar, you'll unlock two playable modes buy cheap Diablo IV Gold(Standard mode and Endless mode) to defend your position. If you're already familiar with Overwatch this will play out similarly to Junkenstein's Revenge which requires you to fight off an assault of enemies that come at you every single round. You'll get sweet rewards such as Ancestral Weapons or Invocation Gear that can activate effects from your Ancestral Weapon effect.
While the release of Overwatch 2 has been a bit muddied thanks to the sequel-that's-not-really a sequel rollout/F2P transition, there's little doubt that Diablo 4, an actual sequel, is going to be an absolute monster for a beleaguered Blizzard.
Today, reports are being circulated which suggest that Diablo 4 is a lot further away than many believe. The Windows Central's Jez Cordon and Xbox Era are both saying that MMOexp Diablo 4 is set to launch in April 2023 with preorders starting in December. It's possible the Diablo 4 will have a big presence at the December Game Awards, possibly when the exact date is to be announced and when preorders will be available.