The creators of Diablo 4 announced that with the start of the next season, a demon will appear in the game, on whose back there is a portal to hell.
You will be able to go there after destroying the creature. Heroes who defeat Rimwalker (that will be the name of the new demon) will be able to penetrate a new dungeon, where they will meet other opponents. For destroying them, you will receive especially valuable loot that will help in further adventures.
The start of the next season in Diablo 4 is scheduled for October 8.