Definitely don’t want to see BBPress fall by the wayside so if I can do anything to help, I will.
I have done a couple of BBPress implementations alongside wordpress, mainly theming and small tweaks, but it’s fair to say at the moment my main knowledge is based around WordPress theme and plugin development.
Happy to contribute in any way, wether it’s minor core patches, front end design/coding, or just adding documentation to a codex etc.