I was expecting a 25% discount on the upgrade. Pretty disappointing as it was revealed recently that is the only way to have access to the new dungeon. Unless you want to shell out just $20 for the dungeon.
I'm sorry but was there a specific reason you expected a 25% discount for the deluxe edition? did they specifically mention that would be happening anywhere? If we look at last years deluxe edition upgrade the price remained the same because you can continue to complete all season content from prior seasons (including missions, weapons, etc) except the season pass.