Currently all the maps within the expeditions are the same.

They basically made a few different layouts and on top of the that you can either get the dungeon, castle, cave, forest, desert or that golden print.
Be in during daylight or in nighttime.

The fact however that i keep seeing the same map layout over and over is starting to get really boring.

If the maps would be random generated and be a mix and match of different parts of the world, that would certainly be a lot more fun.