FOSS gamedev and creative worlds

I'm thinking about relaunching PythonServ and need Your opinions.
But this time I won't do it alone. I will have a small team behind me to help me on this quest.
For the first couple of weeks (maybe months), the server will be hosted on a minimal VPS server.
If the server gets better traffic and/or gets enough donations from players, it will get better.
Right now, you can tell me what mods you would like to see there (Please don't say Technic, because it will just not be good for a minimal server).
At the moment, I'm thinking about a civilized server with villages, towns and huge cities. There will be jobs for people, some small addons will be made by me (too small to call them mods) for currency and stuff like that. I really hope that You people will like it and maybe support it.

What's your opinion about the location of the server?
Where should it be in order for it to give a better experience to people who live far from it?

Is this a minetest server or not?

EDIT: Oh I see, it is. Just set up some common mods. A no_guest (-like) mod is required.

I'm thinking about making a log-in mod where the player will first have to register on the servers website and then log in to the server with the same details.

EDIT: Then they could change their skin from their user CP as well.