The Fated Raid Affix - Datamined Upcoming Shadowlands Season 4 Raid Affix

wowhead.com:

Shadowlands Season 4 raids will have the «Fated» affix and drop a higher item level each week. We've datamined the Fated affix spells, explaining how it works and the affix gives players damage buffs for handling the mechanics!

From the Patch 9.2.5 UI, there appears to be a weekly raid rotation, with one of the Shadowlands raids having the «Fated» affix and dropping a higher item level each week. What is this Fated affix? We've datamined the following spells which are related! Each of the spells has the tooltip of: This hostile enemy is empowered and will cast <ability name> during the encounter. Anything listed in indicates that this portion of the text will be added (or changed) when on Heroic or Mythic difficulties. Which Fated Power will be chosen is currently unknown. Will it use all 4, or maybe only 1 or 2?

Fated Power: Chaotic Essence Summons a Chaotic Essence which casts Chaotic Destruction, inflicting 800 Cosmic damage to all players if successful. Upon interaction, the essence becomes hostile and instead continuously manifests Chaotic Motes. These motes channel 3 Cosmic damage into targeted players every 0.5 sec. for 3 sec. When defeated each mote splits into additional motes. After 15 sec the Chaotic Essence dissipates, granting all players 2% increased damage done, 2% increased healing done, and 2% absorbs done for 30 sec. This effect stacks for each Chaotic Mote slain.

Fated Power: Protoform Barrier Protects the caster, reducing damage taken by 5% for 15 sec. This effect stacks every 1 sec. Upon expiration the barrier shatters, inflicting 80 Cosmic damage to all players. If broken this effect backfires, inflicting all