I didn't read those stories so I don't know anything about the Discworld XD

okay then make a map of the Macedonian empire

map of the ottoman empire
map of pakistan!

- An ancient world map (like late antiquity or middle age) for diplomacy games.

- A European middle age "Castle map" quite like Apollo's England map (I'm a great fan of this map).

- A better version of Middle Earth (the current ones are not bad but I guess something better could be done).

- A updated map of ASOIAF once the last book will be released (very soon, this spring).

Discworld would be amazing.
It would help to read the book,s but here are a few rough maps:
http://orig14.deviantart.net/50a2/f/2010/074/0/1/discworld_political_mapp_by_blamedthande.png
http://grunk.org/risk/risk-disc7-large.jpg

Edited 2/2/2016 17:27:19

Thanks for the link GeneralPE, okay I think I've enough idea's to work with
These are the maps were I will be working on (and when it is going to be published) (is this a correct sentence?)
1. Indonesia (spring 2016)
2. El Salvador (summer/authum 2016)
3. Discworld (winter 2016)