It's hard to tell what version a feature will land in until it makes it to beta.
It's also hard to keep dashboards on this info up-to-date! 
This project board looks fairly recent but says it hasn't been updated since Dec 13, 2018. I wonder if we could automate it some more (for example, I see some issues in the "in progress" column that are tagged "B-rfc-implemented" and "B-unstable", I think that means they should be in the "Implemented" column but I'm not sure)... but dashboard projects have been attempted many times and failed because they need manual work to keep them from becoming stale 