I really hope they *don't* turn her into some kind of misunderstood anti-hero. Agatha was pretty dang evil in WandaVision, and was plenty appealing and charismatic as such. If you give her a show, let her be a villain protagonist.
I don't think anything she did in WandaVision was fully villainous evil more than what someone like Wanda herself did with the Hex.
A list of Agatha Harkness' sins:
- She killed her coven when they attempted to execute her for practicing "dark magic".
- She allowed Wanda's Hex to continue knowing it was hurting people, while she tried to figure out how Wanda was able to create it.
- She controlled "Herb" to make Vision suspicious of "Geraldine" so that the latter wouldn't interfere in her investigation.
- She killed Sparky to test whether Wanda could resurrect the dead.
- She Controlled Ralph Bohner to get info from Wanda about the creation of the Hex.
- She threatened the lives of Billy and Tommy to get Wanda to attack her so she could take her power (if you consider them alive, it's imo quite likely Agatha did not consider them living beings but rather unliving magical constructs).
- She tried to take Wanda's power, because she believed that amount of power would be better used in the hands of someone like herself than Wanda, who she considered being in over her head.
Clearly she's not a fully good, heroic person. She has dubious morals, yes. But imo Agatha is not supposed to be a straight up evil villain but more morally grey. I disliked that it was framed like she was a major villain in Wandavision, though despite what "Agatha All Along" seems to imply she wasn't all that responsible for the bad things happening in the show (that would be mostly Wanda and Hayward). It really seemed more like she was being cautious while unsure of how powerful and in control Wanda was while also not being opposed to using ethically questionable ways to obtain the information she needed (like controlling Ralph and killing Sparky). And while she clearly likes having power for herself, I can't say that taking it away from Wanda is a terrible evil given how Wanda was using it in the show.
I think there is room in the MCU for her to fight larger magical threats like Salem's Seven, help out other mystics like Strange when it suits her and even form a strained mentor-mentee relationship with Wanda. Though that doesn't mean she and the heroes will see eye to eye on things. I see her more as a somewhat less moral version of the Ancient One (who was willing to draw power from the Dark Dimension to be more powerful in service of what she saw as the greater good), but I don't think she's even as evil as Zemo (who has killed numerous innocent people on a quest of revenge but was still able to work with Sam and Bucky when they required his help).
