*WARNING: The following contain spoilers for Murkmire and previously released content. If you have not yet played any of it, turn back now !*
1) Main Quest: Betrayal ! Mannimarco betrays Emperor Varen Aquilarios revealing himself to be the villain that works for Molag Bal and wants the Amulet of Kings for his nefarious purposes.
2) Morrowind: Betrayal ! While helping the Dark Elf Tribunal God Vivec, Vivec's faithful servant Arch-Canon Tarvus Indoril is revealed to be Barbas, the Hound of Daedric Prince Clavicus Vile, that has murdered the real Tarvus and polymorphed as him to take his place.
3) Summerset: Betrayal ! Psijic Mage Valsirenn's ex-husband Leythen, who was a Psijic Mage himself in the past, has betrayed both his wife and Order to become a Daedra Cult worshipper.
4) Orsinium: Betrayal ! Orsimer King Kurog and his mother, Forge-Mother Alga, that were originally allies and patrons of the player, are revealed to be the masterminds behind the Vosh-Rakh cult incursion.
5) Dark Brotherhood: Betrayal ! Order of the Hour's champion, the Black Dragon, is revealed to be the Dark Brotherhood's previous Silencer, Lyra Viria, that had gone missing after performing a Sanctuary Purification.
6) Thieves Guild: Betrayal ! The main villain, Merchant-Lord Cosh, is revealed to be the Thieves Guild previous guildmaster, Nicolas that has performed a heist and coup against his guildmates.
7) Clockwork City: Betrayal ! The Clockwork God of the Dark Elf Tribunal, Sotha Sil, has been abducted and replaced by a Shadow clone of himself created by the Daedric Prince of Shadows, Nocturnal.
8) Murkmire: Betrayal ! Benefactor of Cyrodillic Collections, Argonian scholar Kassandra, betrays player and Co. to claim the Staff of Hist and uncover the location of a powerful artifact.
Betrayal has become such a common trope in ESO that by the time just before I ended Murkmire's storyline earlier today, I already knew that scaleless albino Imperial-bred Kassandra and her foul-tempered bodyguard would betray me before it even happened.
Getting betrayed in eight major content updates in a row has already become way too predictable and way too much. Whatever has become of originality ?