I was thinking for Ingrid.
Here is my spin and playing with Ingrid.
I think I did before something like this before but this time. I think I could make her more embedded naturally to the current SF mythos and not a decendant.
If there would be an Ingrid 2.0 not the actual 1:1 Ingrid in A3, Since I doubt Capcom would insert that exactly from A3.
Origins and Backstory
I would used the Black Moons in ASF as a very important part of her narrative origin.
That would cause her involvement in future street fighter games.
So her being just recently involve and late appearance would make sense rather than just appearing out of nowhere and being involving in everything in the future.
Like I did with Asura decendant, the Black Moons triggered cause her to have sudden access to Psycho Power or awaken a version of Psycho Power but with a slight difference from how Bison harness his. (Not Soul Power)
What she had is natural and pure compare to what Bison had, She doesn’t need a Psycho Drive (which Bison is dependent) that and doesn’t need to worry about replacement body and deterioration like Bison.
She is very much likely close to what the original Ingrid is by the age along with visual representation the radical change was her backstory, motivation and origin compare to the two incarnation of her in Capcom fighting Jam and SFA3.
She is an otaku, cosplayer lolita, and IDOL like Athena in KOF but not a decendant or part of bloodline.
She is also a had background with ballerina, Ice skating and gymnastics that can affect the way She fights.
So her background is not similar to Karin or as rich and influential as Karin. While the origin of her Psycho Power isnt similar to what the Dolls and Clones were introduce into. Since they are forced while her is natural.
Personality/Character
She is innocent, optimistic, cheerful and childlike individual. Like a Kula and Sylvie Paula Paula (in KOFXIV) but not also victim of experiments like them. So she won’t ever be Karin 2.0 or Kolin 2.0.
Fighting Style
She everything and very much whatever version of Ingrid people had know for interms of moveset.
Her personality and character would now reflect the way she is animated when fighting, she whatever Ingrid people would think about.
Yet she bad problems with her power management or harnessing her energy, like Bao is in KOF.
Relationships and Character interaction
When the moon activates, Rose senses another or other individual that awakens with a different kind of Psycho Power. Something that is pure and natural compared to Bison
So Rose seek and tried to find that kind of Psycho Power, She sense and would lead her to Ingrid and the two would finally met.
This is the reason why Rose leave Menat and would later return and introduced Ingrid to Menat as her new student and ally that she would help her manage her own Psycho Power. She would later had a friendly rivalry with Menat.
Fang would later attempt to kidnap her after knowing Rose had her as a student but the attempts were failed because her version of Psycho Power only makes those that are infused Shadaloo Soldier be nullified from Bisons version of Psycho Power.
Fang also experimented with objects that manage to contain some few of her Psycho Power from a blasted Cyborg Monitor and use it to a Psycho Drive. The interaction with It causes the Psycho Drive to be destroyed and broken. So Fang abadonned the idea of holding her captive and expected to be used for Bison return.
Since I believe this is unlikely for her to ever appear in future SF games that is regardless of her fan demands. Especially her SFA3 and CFJ incarnation.
Yet I consider and prefer here more to return as part of a Street Fighter Dreammatch game or a non-canon SF title, to act like the Future Warrior or a guardian of SF timeline like in DB Zenoverse. She is better in non-canon games.
or be for whatever crossover game title like another mahvel or whatever franchise would strike a deal with capcom in the future. Where she can be what her fans always wanted her to be rather than a toned down version of her to fit the SF canon.
