...
- improve Sling's website (UX, SEO, ...)
- improve documentation (website, modules, handbook, compile a module catalog...)
- organize regular hackathons
- improve OOTB experience
- move outdated modules to attic
- list related projects/projects using Sling
- make Sling's news more interesting (not just a list of new releases)
- provide a roadmap
- bug smashing
- ...