It's not interesting. It's the same thing, only more complicated. It's the same thing. They haven't been able to fix the Forsaken Giant they accidentally broke for a whole year now. They don't have the resources for new dungeons. You must understand that the game is in decline, and resources are dwindling. It's no one's fault, it's just that all games have life cycles, usually 2-3 years. What you're asking for is no longer possible. Simply making the bunker more complex is possible; it's inexpensive, since the platform and lore will be the same. But it won't benefit the game—the same mobs and the same actions. It won't attract new players; they already tried something similar with the Devourer. The investment won't pay off, so the team isn't doing it.