This is pretty fantastic and I'd be excited to see the results once it's completed.
I don't know much about the history of the Old World as I don't follow Warhammer, but I'd just use that if I were you. I guess the trick is when in the timeline to set this.
Or, just use it as a basic jumping off point and create your own history and story.
benvoliothefirst wrote:I'm doing something similar. The "cartography" thread has a lot of info you'll find useful.
Biggest problem is coming up with reasons to get 'em into a dungeon for every quest. First thing my players wanted to do was explore the overworld. I set my game in the Warhammer world to make that easier.
Good luck!
D&D is full of dungeon crawling anyway. I think using the Mentor/Emperor thing to encourage them to go on the basic quests to save the world from the growing threat of Zargon should be enough of a reason. If they want to explore the overworld, you can just come up with stuff to fill in on the travel between the Quests. Just based on my mapping of the locations, the Heroes are travelling all over for a lot of these, so it should be plenty easy to create content for exploration through forests and towns and such.