The Hill Giant side of the Giant Liars Map is so useful, I would love to see more maps in this vein.
There are some great human settlement maps, crazy dungeons, and lost cities however a great addition would be some primitive/tribal outposts and village maps, perfect to plan out attacks on the enemy or perform secret rescue missions.
On one side a heavily trapped Goblin Warren and the other a well fortified Orc Outpost!
The map for medium-sized humanoids could also work for; Orcs, Gnolls, Bugbears, Hobgoblins, Barbarians, or Bandits, and the map for small-sized humanoids could possibly work for; Kolbolds, Derro, Fey creatures, etc.
A more far-out version could have a tribal Girallon tree top garrison and the other side a Lizardfolk swamp outpost.
Since you have full-filled my GM's dream by producing the Monster Codex, now please give me a place for those creatures to live!?!
What do you guys think?
P.S. While I am at it throw in a double map set of the Underdark!
Sounds like a good idea for a series of"lair" maps.