For review: *DRAFT* Proposed product goals for Drupal 8.5/8.6(+) core

After consultation with the various initiative teams + core committers, we have created a DRAFT of proposed product goals for Drupal 8.5 (feature freeze: January 29, 2018) and Drupal 8.6+ (date TBD; ~late summer 2018).

The overall goals are divided into the following priorities:

1. Migrate
2. Media
3. API-First
4. Layouts
5. Workflow
6. Outside-In
7. Out-of-the-Box
8. Community Initiatives

Please let us know your thoughts at https://www.drupal.org/node/2905741 by September 6,
2017 so we can hit the ground running in DrupalCon Vienna!