Update Potental TODOs.md

Author: cheerfulstoic

guides/other/Potental TODOs.md

@@ -1,6 +1,8 @@
  * Support features of `CREATE TRIGGER`:
    * allow specifying a condition for when the trigger should fire
- * Creating a batch-processing GenServer to reduce queries to the database.
- * Make watchers more generic (?).  Don't need dependency on PubSub, but could make it an adapter or something
+ * Allow watchers to support adapter pattern.  Potential adapters:
+   * Phoenix PubSub (the default, would work like it does now)
+   * GenStage producer
+   * Creating a batch-processing GenServer to reduce queries to the database.
  * Allow for local broadcasting of Phoenix.PubSub messages