I feel it adds a bit more uniqueness than just "she was a fox. She found a dieing wizard and became mostly human after stealing their magic. She eats the souls of..... Charmed.... People to keep her appearance...."
This gives a better reasoning of WHY, she is a part of a race that actually evolved into that, rather than just some weird mishap that happened that makes her seem more like shes that female Terminator that transformed into a woman as a happy turn of events for the police officer before he died.
Shes obviously still a seductress of Ionia same as normal, but it could add a bit of depth to her original lore though as well..... She could be the animalistic shapeshifter that helped start that new tribe due to her being lonely all by herself. She was changed from a fox into a fox lady afterall, so perhaps she was one of the "people" that was running when she found a shapeshifting mage and then found a way to pass it along to the other animals, thus being the reason why they have more characteristics of animals rather than humans? Seeing as they were very offended if the bonding was just magical or if there was a more physical aspect...... Perhaps it is not just that its a rather crude question to ask..... But to help gaurd their deep secret of how they came into being and to help protect their beautiful but deadly maiden so as to not have people seeking her out to pester her and asking for some of the magic as well...... However it may be transfered.
Just some possible ideas that might make you a bit more open to the new lore.