There is a loot of "open world" MMO's that have huge maps with copy/paste elements. Boring as hell. And you need to run a loot just to get somewhere. It would be nice to see again map with random encounters.
1. You can add places, close places (for example if server is down or overload) etc as you fit. Adding new is just about put it somewhere and update map.
2. We got something "old school" Like that map. Spend some time with it playing Fallout (few times already ^^). You know - sentiment.
3. It would be GREAT to have random encounters while traveling. Especially with other players. (for example if 2 players on the map will be close then random encounter will be generated with monsters or not).