Diablo IV uses the exact same engine architecture (a modified version of the Diablo III engine). The PS5 and Xbox Series X are just specialized computers. There is no technical reason why a solo player in a dungeon needs to ping a server to kill a skeleton. The game could easily cache the season data locally and sync later.
Let’s get the definitive answer out of the way immediately: diablo iv offline mode
The lack of an offline mode has significant implications for the "lone wolf" demographic of the player base. Diablo IV uses the exact same engine architecture
If you want an "Offline-ish" vibe, follow these steps to isolate yourself: The game could easily cache the season data
The game was designed from the ground up as a persistent, shared online world, requiring a constant internet connection to play on all platforms.
As Diablo IV continues to evolve and receive updates, it's possible that Blizzard may reconsider its stance on offline mode. The company has a history of listening to player feedback and making changes to its games accordingly. If enough players continue to express their desire for an offline mode, Blizzard may eventually decide to add it to the game.