Um, okay. You have the wrong idea of what the new world is for. We're playing on what, a 1.4 world? Something like that? It's pre-release world, that's all I can tell you. The new world is basically just for the updated map. Only unexplored areas of our map will be updated (this is current main world). In the new world, the whole map will be brand new. It's purpose? The same as the current world. To invite to community to do whatever it so pleases, so long as it doesn't break the rules. If you're looking for a build only, when the creative server is back up and running you could go there. Sure, the spawn city will be more professional looking. The major factions will have professional looking cities. Beyond that, don't expect much.
For the build rights *crap* (I'm calling it this because this is what I believe it is, no offense), here's an example. I do not allow cobblestone or netherrack in my city. If I see them, they are automatically kicked out of my city (whomever placed it). It's a rule, those two things are utter crap. However, there's one exception. I've used cobblestone in a megabuild before and it looked awesome (with a texture pack). So any block can be used to create a beautiful build in my city (they must use dokucraft or default texture back, and add a sign to which is used with the cobble/rack). Other cities, they say "stick with the theme." The theme might be fire, black, white, sand, etc. That's where the diversity comes in. Who would want to come to this server if every city looked exactly the SAME!?!? Hell, if every city looked the same I'll go back to that crap server I used to play on, at least they had some diversity. They don't have nearly as much diversity as Minetown has right now, though. The diversity and non-rpg plugins that MT has makes MT the most unique server there is (every server with rpg is utter crap in my opinion, sorry to say).
Also, you want to restrict the number of people allowed in the new world? Last I heard, the new world was also an 11000 block world, same as ours (forgot if radius or diameter, someone tell me which it is, thanks). All I know, it's freaking huge... and you want to make sure not every can build there? There's some things that can only be gotten from the new world or the admin/cs shop... so basically everyone who doesn't want to stick with the flock is forced to vote every day for 300 days just to save up for enough mtc to buy diamond, to make into gold, to buy from the adminshop (or skip that step and buy from cs shop)... crazy.
Also, jthm is RIGHT. Anything outside of a city is considered wilderness. That is, UNTIL it is made a city (of what is in the wilderness). One person does not equal a government. A government is nothing without people to rule over.
And staff having to decide who gets build rights? lol. How will the decide (on the hypothetical that this idea ever gets approved)? Will they cherry pick, or will they have an additional application form? Either way, it IS more work for them. As well, it also shows discrimination/differentiation among all MT residents. Do you support discrimination/differentiation? By the way, differentiation is the politically correct term for segregation, when not involving racial differences. Wanted to say that just in case, because differentiation isn't used as a word very much.
All in all, I'm with jthm... I don't agree with your idea at all. Also, I apologize for anything insulting. I'm a very blunt person, and I don't tend to want to cherry pick things. These are just my opinions, and I apologize if you feel I'm targeting you. I'm not targeting you, just your idea (which isn't you yourself).