Economic model, shop, battle pass, purchase without power or cosmetics, the complete point following the August 2022 report on Diablo 4!
Preamble
As the game is in development, this information may change.
Economic model
The economic model of Diablo 4 is a paid game with cosmetic purchase option, bringing no in-game power. For cosmetic purchases, two options, the online store or the season-indexed battle pass. Cosmetic elements can be combined via transmografy, a system similar to Diablo 3.
In-game store
The store will allow you to buy various cosmetic items via the game's premium currency. You can therefore directly buy the cosmetics that interest you, without having to go through a loot box system.
Battle pass and season
It's high fashion and Diablo 4 will not cut it. Each season you will have a free battle pass system that you can upgrade with real money. The developers have planned four seasons per year, each season being associated with its battle pass and the addition of content (vent, balancing, legendaries, etc.).
Source
The Blizzard article DIABLO IV QUARTERLY UPDATE—AUGUST 2022
The economic model of Diablo 4 remains unsurprising compared to current fashion. It remains to be seen the prices of the cosmetics and the reinforced battle pass, hoping that there will be no abuse since we will have paid for the game!
By Alchemists, December 2021