Hi,
We select our roots internally because we rent the server. All project should have room on the server. Normally the projects don’t need admin access to the server so the users of the project don’t need to have tech-knowledge (e.g. the MediaWiki project user need only some knowledge about MediaWiki). The description should be in English so everybody can read, every other language is nice for their native speakers but not necessary.
The potential of this server is that we can develop and test new methods for Wikiversity and Wikimedia. Every user can get some space for hosting files. We can install other education software like Moodle. We can set up an environment for direct teaching and learning. At first we should start with a small server and if there is enough acceptance we can move to a bigger one.
But at moment we haven’t found anyone who rents the server. If there are volunteers that would be nice.