Form & Content
Organize and prepare content, e.g. templates, language files, logos, formats; Copyright issues
See Wikimedia content
About the community itself. Organisation of events; philosophical discussions; collaborated essays.
Core issues & collaboration
Helping contribute and collaborate (i.e., what makes it easy, what makes it hard, how to do it well, why you have to, what conflicts typically arise, fixing them). Discussing and formulating project-wide (i.e. not language-specific) policies.