In case anyone is interested ... I am once again working hard on WebCit-NG (which will become simply "WebCit" when it replaces the old code). Progress is slow because no shortcuts are being taken; every layer needs to be perfect.
The current code supports various dialects of DAV (even enough of CalDAV to work with Lightning), HTTPS, and a client-side renderer that works with both big screens and mobile. The "forum" view (bbs view) is starting to take shape. You can log in (but it won't mark any messages as read, so feel free to move from room to room). No there isn't a demo site yet. That will come at some point. In the mean time you can download the code and run it. :)