Now, Mournhold - City of Light, City of Magic - is prime real estate, whether above ground or under ground. So, my idea is that after you finish the quests where you kill the DB leader and the Altmer goblin trainers, the goblins and DB stop spawning. A new quest opens up at the end of the MQ (or whenever) where you get to work with some Mournhold official (Helseth, his flunkies, whatever) to turn Old Mournhold back to its former glory. Well, sort of.
Beautification:
- lanterns as light sources
- planters with glowing fungi (luminous russula)
- benches, some fountains
- clutter (crates, baskets, etc)
Population:
- merchants turn old a few OM buildings and areas into stores.
- NPCs wandering the streets.
- Some street-side small-time merchants, similar to the vendors in the Foreign Quarter canton who have a little corner out in the open.
- an Inn/Tavern/pub
- guards
Access:
- new access points to OM from the overworld (Mournhold city proper) so that you don't have to crawl through those stupid sewers each time you want to visit.
This would turn dreary boring Old Mournhold into a useful area to hang out in.
Discuss!
EDIT: easy (?) implementation: OM is blocked off for a few weeks, and when it "opens" the cells are switcheroo'd with the populated ones. Like how you get the Skaal house in Bloodmoon.