As long as you copy the saves folder and the generated worlds folder, you should be good. You can copy the entire 7 Days to Die folder just to be safe. You need to be sure that the copied files are placed in the correct location. After moving the files, open the game and go into the game and look at the saves you have. So you see them? If not, the files are in the wrong place. If they are red, there is still an issue with the files, though you have it partly correct.
That said, even when things get moved, I've had my map covered again in fog of war and had to explore again (though custom waypoints were still there). In MP, you can slowly uncover the map by scrolling it around a lot, but it doesn't seem to work in SP. You may get lucky and said the map issue, but even if you have this problem, it is minor. The saves and worlds are still there.