I am not aware of any public groups to follow the progress, I have just met a few people on the Loop Zulip and have talked with them every few months whenever people have time to look into it.
I'm thinking we probably need to get more organized and start picking up the pace with this. There are rumors, which of course I am not sure how credible, but word is that the Dash will be discontinued soon. Maybe we can add another channel to the Zulip to try to get things moving.