So many things that I want to see in Mastodon... so few things I know I'm gonna get...

* !groups
* instance whitelist mode for users/groups
* better theming
* at least some plugin support
* finer-grained instance interaction control (mute things from timeline vs users from there can't @ etc)
* better controls over message scope
* instance-only messages
* maybe some federated blocklist stuff? Iffy on this one...
* less js shit in the UI/make it at least work in static HTML mode