Not sure if this has been mentioned or not (I'm sure it has), but maps just don't have any real purpose in the game. I think the ability to mark points on a map needs to be added, coordinates need to be above the map so you can read them, and maps need to have the ability to be combined into larger maps.
I really wish that maps could be combined. I lost my villagers that i found and now its a ghost town . I spent the past few days trying to locate some type of village but to no avail. I've mapped out 3 additional areas trying to locate villiagers for my LARGE world. Even If i did find it, I would need to transfer most of my good stuff or make several trips and when friends come in to the world, they would need to travel to get there. Combining maps would at least solve that problem.