Board Game Arena

Does this mean they're working on it or that it won't be implemented for whatever reason?

I don't know, but Citadels has been in alpha testing for years. For a game to be in alpha that long, I assume there is some publisher or license reason preventing beta release.

That makes sense, thank you!

I opened a bug report in October and it was closed as fixed in November, so they're working on it. Not sure when I'll be able to get a group together again to test it again, though, which I think is the big problem with advancing it.