First things first. Ancient Japan is made by AlpakaWhacker, Wingviper and Alepticus(?) I think. Those are three admins from TeamVareide. It's not an official map, but it's still a TeamVareide map.
Teweran is just awesome. Even though the breezers (yep, that's their new nicknames) are too used to the exotic maps, so they most likely just skip it away because it's too cold. Some of them think the dragon looks scary. And some of them just can't stand sliding around on the ice. Poor people.
-Mapmakers are awesome, but there are way too much maps. Most of them is never played.
Good maps like Kharmunrah and Yellowstone(?) are so rarely played, so the newer players (like me) can't make any chest routes. And when we try, the good places are most likely taken and we get killed.
So it would be better if they add the better maps, and let other (not-that-good) maps out. Time to be strict.
I was extremely sleepy when writing this. Sorry if it made you sleepy too. D;