Your origional title was Living Maps This immediately suggests to me the idea of seasons, time, and sunlight. These would most likely be related to which server you chose to log onto. e.g. if you were thieving from a chest, you may want to log onto a server where it is night... even if its day where you are. Thieving tends to be an activity of either the night or crowded spaces (pickpocketing) Snow would be harder (more tiring or perhaps slower) to run in. Not sure what other effects Seasons and Time of Day would have. There is bound to be some other suggestion threads around that relate to seasons.