Thanks for mentioning Wyll's ending, I managed to hunt it down to see it for myself and... yeah... devastating to see. I was not aware it was so bad even articles got written about it, it's even worse than the lore contradicting Dark Urge one. At least Dark Urge's can be salvaged with minor additions, but Wyll's I truly cannot salvage.

There's no evil story or character development here, this is just pure character butchering for epic visuals. No actual ambition nor reason to be doing what he's doing, completely out of character, an imbecilic psychopath just throwing a tantrum instead of having actual established ambitions and motives to ultimately accomplish something of worth on a grander scale. Because that's all these cutscenes aim to portray, just a very childish evil bully for the sake of shoving into the player's face how evil they've become.

Just like I said;

Originally Posted by Crimsomrider
Neither the original cliffhanger nor the extended cutscene actually establish any character ambition to explain motives for becoming the Absolute. The extended cutscene is intentionally as ambiguous as it can be of any further character development, failing to portray what [our characters] ultimately want to accomplish beyond the cliffhanger, because the true purpose of these extended cutscenes isn't to conclude the story properly, but to cinematically portray our characters in the most comically cartoony mustache-twirling-smirking evil ways in order to just visually impress the audience; "You're evil! Evil I tell you! Pure evil! Do you see how evil you are?! Are you impressed yet?! Let me show you some more! More evil!"

A few days ago I was joking with someone how I intentionally didn't include Wyll's potential evil epilogue ambitions into my original post because Wyll's just a nice guy. I truly have no idea what Wyll's evil ambition could be, other than probably becoming Karlach's ULTIMATE EVIL sidekick yet again as a joke. But in all seriousness I personally saw his ambition and motive as;

  • Him becoming so fed up with Mizora he eternally imprisons her to torture her and then becomes so consumed by hate against devils he fully embraces becoming the actual vengeful Blade Of Frontiers from Early Access, paying a visit to the Hells and slaughtering the devils with such brutality he eventually fully evolves into an archdemon himself by the time he's done. Ultimately becoming the very thing he hates.
  • Repulsed by his new form, but believing himself to be a hero doing the right thing, he establishes a fake utopia in Baldur's Gate by dominating the population to idolize him in order to cope with it.

[Linked Image from i.imgur.com]

It would've been beautifully poetic since he's a hero corrupted by power that just wants to do the right thing. A sort of bittersweet evil ending where he truly does the right thing on a grand scale, but ends up so corrupted by it he ends up a villain just trying to cope with the consequences, so demonically deformed even Mizora can't look at him out of sheer terror.

But after seeing his actual unique ending, it's truly devastating to see because Larian knows how to write captivating villains;

  • Ketheric Thorm who is evil precisely because he loves, precisely because he cares, precisely because he has a family he wants to protect. A daughter he is so attached to he'll even tadpole her just to preserve the last essence of his family. He's a family man, a father, a husband trying to create a world where someone like him won't have to suffer the loss of a wife and child ever again.
  • Gortash who is not evil for the sake of being evil, but because he was wronged as a child and sold to none other than Raphael of all people in order to pay the bills. He came from nothing and fought his way to the top in order to create a world in which he'll never again be used as a bargaining chip for others.
  • Orin who as a child was born into a deranged family, with her own parents imagining best ways to murder her in order to please Bhaal. She had no way out, never stood a chance of a normal life, misery is all she's ever known and ultimately had to do the best she could with it. Someone who completely breaks down when she learns the truth she's merely a product of her environment, a child of incest merely created to be sacrificed.

But when it comes to our characters they're the ultimate cartoony and selfishly deranged evil psychopaths imaginable, more deranged than all 3 main villains combined. Makes Orin look like a completely sane woman that's just uppity in comparison.

What I personally would do for Wyll is toss this unique ending into the trashcan and make Tav's Baldur's Gate generic ending his actual ending. It wouldn't be as impressive, but it would entirely fit his character. The hero who saved Baldur's Gate, by conquering it.