[Source] The Second War in Heaven, is a future conflic between the Eternal Court and the Renegade Perennials which will take place after the Renegades are released from Tartarus. During a discussion, Corruption and a misterious figure discussed the war, mentioning that (future) Erimos had traveled in time to the past in order to change Magic's timeline. Her efforts were useless, as a Perennial is unaffected by any changes in the timeline.