Make forum an opensource project guided by Mendix.
The forum has a lot of bugs that need be fixed and I expect a lot of us to be able to create fixes and create pullrequests for it.
Also, I expect lots of developers to add great extra's (speech, native first, Iot, whatever) and in general make this forum a far more fun app.
It is a very visible application and can be a Mendix-showcase. (see James’ remarks here)