We have been iterating on different designs and are starting to test internally. I don’t have a timeframe but will keep you posted.Thom commented
An ideal solution would be to remove the "start a new conversation" box and replace it with a button that is in the lower right corner (think android material design). Having the user take an extra step before creating a new post would reduce the number of misposted replies in my org.
This request is still on the backlog.
I'd like to add to this the ability to follow, be notified by, a hashtag.
This feature request is working its way through the backlog queue. No new details are available yet.