There are plenty of Scala 2.12 roadmaps to choose from:
- the original one (June 2014), linked from this article - its Dec 2015 update [1] Of note is its prominent (Call for) Participation. Looks like the Typesafe team is feeling overstretched now. - for those of us following the bug database, we're stuck with the outdated schedule [2] - the GitHub counterpart to the above is [3] which seems more accurate: it updates the updated schedule eg by postponing by one month the release date for RC1 of 2.12.
So I've given up reading tea leaves from roadmaps and just wait for 2.12.0 when it becomes ready.
As to why that report in the (public) bug database is outdated, let's remember the mindset formulated in https://twitter.com/adriaanm/status/571073842434547712 (declaring JIRA bankruptcy) which wasn't put in practice. Quoting: @adriaanm our plan for Scala is to declare JIRA bankruptcy and run for the githubs. Maybe take the top half of the open issues with us.
[1] http://www.scala-lang.org/news/2016-schedule/
[2] https://issues.scala-lang.org/projects/SI?selectedItem=com.a...