Description:
I think this would be especially useful for servers, but I think an option of the world scale (probably up to 1:1 I don't know why you'd want to go higher) would be cool if it is feasible to add.
Why might I want a bigger world?
This is the option that I really want, it would allow for a lot more players to live in small areas/factions and allow for much more realistic builds in some areas. I also think that certain roleplay events would be made easier and more natural to implement. Another thing I have wanted to do in the past is make a full server restricted to the Shire, this might be niche, but it would be a lot more effective with a larger world.
Why might I want a smaller world?
This is a secondary aspect that would be created by adding the scale option and, to be frank, most benefits of a small world are already given by the teleport function but perhaps a player may want to omit the feature in options (obvious reasons) and want to be able to travel easier, especially on singleplayer worlds.
Another thing I would benefit from:
Also not really a full suggestion but a side note, I think more roads and checkpoints, especially in the rather empty areas, would make travel easier and more fun, I especially like to use the roads in travelling because you don't have to check the map and the path is (generally) flat.