While the more expansive workflow features that were proposed did not make it in time for code freeze, we still have an opportunity during the current "code slush" period to make a few key alterations to the underlying Drupal database. This will enable further development in Contrib of comprehensive workflow and content moderation modules, with an eye towards D8. However, time is running out. After October 15, all hope is lost.
Please take a look at the issue Add "state" and "last_state" to node_revisions table. The approach has seen some good support in discussions elsewhere, but it needs developer help to get it implemented. Getting these changed committed to Core would be a huge boon for anyone working on modules that deal with content workflow issues. This in turn will be great for anyone working on larger sites requiring better workflow support. Please support the cause if you can.