[pep-602] Address dependent policies

pep-0602.rst

@@ -111,6 +111,39 @@ release schedule:
 - 3.9.0 final: Monday, 2021-04-19  (6 months later)
 
 
+Dependent Policies
+==================
+
+Deprecations
+------------
+
+The current policy around breaking changes assumes at least two releases
+before a deprecated feature is removed from Python or a ``__future__``
+behavior is enabled by default.  This is documented in PEP 387.
+
+This PEP proposes to keep this policy of **at least** two releases
+before making a breaking change.
+
+The term of the Steering Council
+--------------------------------
+
+The current wording of PEP 13 states that "a new council is elected
+after each feature release".  This PEP proposes to keep this policy
+as it will lead to a consistent election schedule.
+
+The term of the Release Manager
+-------------------------------
+
+The current undocumented convention is for a single Release Manager to
+handle two feature releases of Python.  This PEP proposes to keep this
+policy, allowing for the term to be extended to more releases with
+approval from the Steering Council and the Cabal of Release Managers.
+
+In particular, since this PEP is authored by the active Release Manager
+and its effect would shorten the term of the Release Manager, the author
+is open to managing the release of a third feature release to compensate
+for the disruption.
+
 
 Rationale and Goals
 ===================
@@ -204,16 +237,13 @@ of the next version for around six months.  Figure 2 is including
 this information to demonstrate that overlap between stable version
 releases with the 12-month release cadence will be nothing new.
 
-Some policies depend on the release cadence
+Other policies may depend on the release cadence
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-The following policies depend on the release cadence and will have to
+Although identified dependent policies were addressed in a previous
-be updated:
+section, it is entirely possible there are some other areas which
+implicitly rely on the timing of Python releases.
 
-- the deprecation policy
-- the ``__future__`` import becoming the default
-- the term of the Steering Council
-- the term of the Release Manager
 
 Rejected Ideas
 --------------