Warning: Unmarked spoilers!
Yesterday I concluded Tanlorin's questline, and the experience was ambivalent. On the other hand, I really liked the characters who were distinct and well characterized. On the other, however, the plot was only half explained, if that. It hinges on Wisteria's betrayal, but her motivation was not explained sufficiently. As the text stands, she seemed to just randomly decide that going over to the Ceythalmor would enable her to be romantically together with Tanlorin - as if they couldn't do that as it was. But also, judging form her lines she seemed to think the planned coup was important in itself, even more than Tanlorin's life. But why? The writer never tells us.
This bugged me greatly, so I concocted the following headcanon: Either Wisteria was a double agent for the Ceythalmor from the beginning, or they managed to turn her at an early stage to their side. As the faction's goals and thinking are left very ambiguous, there's room for speculation what was the exact hook they lured Wisteria with. I'm going with an idea they are a sort of fascist fringe faction within the Thalmor: Intending to transform the Altmer society into an authoritarian, populist state ruled by an ostensibly meritocratic elite (while paying some lip service to traditional forms). So, rather like the Falange in the 1930's Spain in our world.
Wisteria might have been attracted to an idea of equality among the Altmer and the breaking of the power of the wealthy elite and the social shackles of the family structures (which the Ceythalmor also might say is their goal, as does the Garland Ring), but not so much to the Ayrenn-style acceptance of outsiders which seems to be a part of the ideology of the Garland Ring. Part of the Ceythalmor populist drive could be a promise to remove the stigma of the oustered Altmer. As Tanlorin is oustered from their family, an open relationship between them and Wisteria would be socially unacceptable in the current conditions, and she doesn't want to risk becoming an outcast herself. Still, having their romance remaining a secret can't truly satisfy her in the long run either. Wisteria also seems to be frustrated with Garland Ring because they can't transform the society quickly enough for her taste. So, she thinks the coup the Ceythalmor is attempting would at one stroke solve the societal problems she chafes with and enable her to openly have a romantic relationship with Tanlorin. Both goals are very important to her, but the societal one is in the end more weighty for her - which is why she is able to threaten even Tanlorin with death if they stand in her way, even though she is internally torn. Judging by her lines she seems to harbour a grandiose fantasy of being able to control the Ceythalmor after the coup so there's a hefty dose of ambition involved too. Also judging by what she says she might have come to see behind the rhetoric of the Ceythalmor and realize they are just all about power, but the fantasy of getting them under her control is too strong for her to resist.
The player character becomes a convenient scapegoat for Wisteria's dilemma, as she might say to herself that the PC has ruined things by "seducing" Tanlorin away from her. Thus, her anger and contempt for the "thorn in her side". She also seems to be a jealous person who might well think that if she can't get Tanlorin, no one will. So she stakes her every hope to the success of the coup. If it succeeds, she thinks she has a chance to win Tanlorin over to her way of thinking when they see how "well" things will turn out. If not, and Tanlorin has to be sacrificed, at least she can say to herself that she has made that great sacrifice so that the Altmer society is saved and made perfect (to use a word from her line in the final battle). Either way, she will remain a hero in her own mind and need not have a guilty conscience.
Basically, to me this seems to be the only psychologically and logically satisfying way to make sense of her actions. Otherwise, she just seems insane and/or self-sabotaging for no reason whatsoever. What do you think? Are there any other ways to make the plot make sense?
Where do you want to visit next?
The Ruby Isles - Also called Imperial Island, City Isle, or the Eight Islands, this includes the island immediately surrounding Imperial City & a few small adjacent islands. With Cyrodiil at war and the Imperial City under siege, this little slice of forgotten territory is perfectly positioned to serve as a future Event Zone with its own dynamics, or as a direct expansion of Imperial City with the same Tel Var PvP dynamic.
Soltheim - We've been there before, but let's go back again! Perhaps we can get a Werebear skill style.
Central Skyrim - Fill in the rest of that gap! College of Winterhold + the Pale. Maybe some expansion of Frost elf lore.
Shivering Isles - The realms of Mania and Dementia offer the perfect place for PvP Battle Royale, each with their own uniquely maddening rulesets.
Hammerfell - The perfect zone to release in conjunction with ES6. Expect heavy lore cross-over, maybe even character cross-overs.
Soul Cairn - We could learn more about the Ideal Masters, and maybe pick up some new Soul Magic.
Black Marsh - Lots of space left here: Soulrest, Helstrom, Thorn, Gideon, Archon. Up to South Deshaan.
Central Elsweyr - The Tenmar Forest between Northern and Southern Elsweyr. Potential home of some endangered beast races.
Falinesti - This one is tricky, but not impossible. Since the city has been taken by someone (Rajhin, Molag Bal, Mephala, who knows?) we could find it in Coldharbour or some other realm. Our completion of the storyline would simply ensure the city's "future return" to Nirn, simplifying implementation.