User blog comment:Mira Laime/Moderators Without Borders — a New User Group is Coming/@comment-32964209-20170819201541/@comment-26339491-20170821221206

We're not planning on creating more user roles at the moment. The more user groups there are, the greater the potential for chaos and confusion, so we're only adding roles if we feel it's really necessary and will be beneficial for many wikis.

We already have plenty of other global user groups (VSTF, helpers, Vanguard) who can help out with tasks for which the new global Discussions moderators aren't responsible. For now, I'm pretty sure they can cover the most pressing needs of communities where there aren't any admins to look after things.