Honestly, you should wait for the release of the english version to really play Enderal. The game is very dialogue and story heavy and if you don't speak german you will miss out on one of it's key features. I am actually surprised, you even made it past the tutorial without any german knowledge
If you want to get a feeling for the lore you can give "The Butcher of Ark" a try. It's a short story that takes places a couple of years before the events in Enderal and is supposed to "set the mood" for the game. The protagonist visits a lot of places, you can find ingame too, like the capital Ark. You can find it
here. A detailed map of the world is not available, as far as Iknow.