Since the last update was released, I've been checking in now and again hoping to see some development, but I've come to the realisation that I also don't mind if the mod stays how it is.
Its already a more expansive world than minecraft itself, and after 8 years of playing, there's still little details I'm always coming across.
The mod isn't dead, as long as there's people to play it.
Who knows where the original developers are, but I hope they're all happy, healthy and very proud of what they've created here.