Update 2.10 roadmap (#68081)

docs/docsite/rst/roadmap/ROADMAP_2_10.rst

@@ -14,24 +14,34 @@ Expected
 PRs must be raised well in advance of the dates below to have a chance of being included in this Ansible release.
 
 .. note:: There is no Alpha phase in 2.10.
+.. note:: Dates subject to change.
 
-- TBD 2020-??-?? Beta 1 **Feature freeze**
+- 2020-05-30 Beta 1 **Feature freeze**
   No new functionality (including modules/plugins) to any code
 
-- 2020-??-?? Release Candidate 1
-- 2020-??-?? Release Candidate 2 if needed)
-- 2020-??-?? Release
-
-
+- 2020-06-30 Release Candidate 1
+- 2020-??-?? Release Candidate 2 if needed
+- 2020-07-30 Release
 
 Release Manager
 ---------------
 
-TBD
-
-Temporarily, Matt Davis (@nitzmahone) or Matt Clay (@mattclay) on IRC or github.
+@sivel
 
 Planned work
 ============
 
-See the `Ansible 2.10 Project Board <https://github.com/ansible/ansible/projects/39>`_
+- Migrate non-base plugins and modules from the ``ansible/ansible`` repository to smaller collection repositories
+- Add functionality to ease transition to collections, such as automatic redirects from the 2.9 names to the new FQCN of the plugin
+- Create new ``ansible-base`` package representing the ``ansible/ansible`` repository
+
+Additional Resources
+====================
+
+The 2.10 release of Ansible will fundamentally change the scope of plugins included in the ``ansible/ansible`` repository, by
+moving much of the plugins into smaller collection repositories that will be shipped through https://galaxy.ansible.com/
+
+The following links have more information about this process:
+
+- https://groups.google.com/d/msg/ansible-devel/oKqgCeYTs-M/cHrOgMw8CAAJ
+- https://github.com/ansible-collections/overview/blob/master/README.rst