I would love to see Hubzilla get the boom in development that Mastodon got. I think it only has three active developers and they can't keep up with all the requests. It already has the basic features, it just needs some polishing.
Are there any #mastoadmins that are interested in running their own hub? Or maybe some mastonauts could run a hub for their families. I've been thinking about running a private family hub for family photos/messages and using it as a slow intro to the fediverse.