Do you expect a Masteria expansion?

The haunted mansion is awesome, and it fits even outside halloween... With the old phantom forest. All maze like maps are grouped in one place that fits. The monsters inside may be a different thing. There's a lot of wasted potential in there, with monsters of such low level, but make it a bit better with higer level monsters, recovering the old storyline, a "final area" like the old chimney thing, but with monsters and a linear progression, until you reach a boss, new to the storyline, as a climax, and you got yourself a unique dungeon.

EDIT: And also, [MENTION=247]Combattente[/MENTION]; got this quite right. It's just too much lost, and easily recoverable.

As for storyline, it can be as easy as "We rebuilt it, and aliens are gone... But something is suspicious".

Then add the time machine to check out the future.

BAM. DESTRYED FUTURE NLC. And since aliens were here in the present before, Nebulites make sense to drop and all.

To me, Haunted Mansion doesn't fit at all. At first, I thought it was a theme dungeon where you can explore for the Halloween event, but it turns out I was wrong. That is why I stopped going to Masteria after a month ago and only go there on my side character/mule to see if there are changes. I know some people will disagree, but I have my points.