NOTES for importlib should mention the ultimate end-goal for the package.
diff --git a/Lib/importlib/NOTES b/Lib/importlib/NOTES
index 134f112..95d002b 100644
--- a/Lib/importlib/NOTES
+++ b/Lib/importlib/NOTES
@@ -76,3 +76,5 @@
       - __import__
       - import_module (backport to 2.7)
       - resolve_name (backport to 2.7)
+
+* Bootstrap importlib as implementation of builtins.__import__