True Prophecy was removed due to adding the Seventh Seraph hand cannon and wanting to make sure the world pool has a balanced distribution. Those two along with Dire Promise would mean players would be getting more kinetic hand cannons over other drops in the world pool, and our goal is to ensure players have wide variety of archetypes in the world pool.
Spoiler: We do have two new 120 Hand Cannons coming next season for anyone who is enjoying that sub archetype.