Hi Geoff - welcome to the forums!
Development is certainly alive, and I expect it to stay that way in the foreseeable future.
There's no published roadmap per-se, largely because what's at the top of the priority list has changed reasonably often in the past. The current short term plans are to add some more polish to the current beta, and get that shipped into a stable version, migrating project support out of beta status. Slightly longer term, I'm expecting to focus mostly on the Python API, so that more features can be implemented as plugins.