Super duper excited for this!!!! I have a few suggestions as well <3
-Streaming multiplayer games (through Steam or otherwise) such as Don't Starve Together, Team Fortress 2, Minecraft (Buying a cheap package from a host for a few days or for as long as WCOn goes; We could do community projects and build cool stuff <3 I buy through an awesome, cheap, and friendly host if you guys needed help!), Overwatch, etc etc.
-Group collaboration video! Everyone who wants to can get together and create a MAP video of a specific event on the site!
-My movie suggestion is Wolf Children! It's rated PG and it's super amazing <3 There's a sub version of the movie but they also did an English dub, which would be easier for everyone to follow!
-I'll make sure to put down more idea's when I think of them!!