Well, I have an idea:
- Make an option in your firepit to upgrade your safehouse.
- The "upgrade" would be changing a theme of your house (walls and floortiles). It wouldn't generate new map, but it would just change graphics of existing walls, floor tiles and bed..
- Possible themes: Shady Sands theme, Vault City Theme, Junktown Theme (its current theme, I guess), San Francisco Theme...
- Tents would only have 2 themes: Default Theme and Savage Theme (Tent similar to those in Arroyo, with some drawings on them).
The changing graphics would work similar to upgrading your fire pit. It would cost some money and resources...