Permissions (to request sysop, bureaucrat status...) - SQL queries
Deletion(multilingual speedy) / Undeletion
Wikipedia in other languages (logos in all languages) Translation - Logos
Form & Content
Content Issues e.g. templates, language files, logos, formats, Copyright issues
See Wikimedia content
About the community itself. Organisation of events; philosophical discussions; collaborated essays.
See more at wikimedians
Core issues & collaboration
Helping contributing and collaborating (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.