I like Preztels :>

Either by choice to become stronger

Or by chance . . .

Something about Cinder having Grimm wings like the Hound awakens something in me

If I had to re-write Cinder I would start in the aftermath of Volume 3

I think she would be more injured after the silver eyes

She would have BOTH arms "healed" by Salem, and Salem would teach her how to make Grimm bone Armor

I also want to expand on cinders semblance

Her Scorching Coreses, so far of what we see in cannon allows her to overall control fire, and anything she superheats with her hands,

In my au Cinder can superheat her whole body, including her hair (she's thinks she some kind of demi god or something)