So she is a classic champagne.
Base coat aside-
25% chance of creme and champ
25% chance of no creme and champ
25% chance of creme no champ
25% chance of no creme no champ
Do you have any info of the agouti for the stallion you bred her to?
If he is aa or Aa you could get chestnut base, bay base, or black.
If he is AA you would be limited to only chestnut or bay base.
Knowing if shes ChCh or chch would also change the options.
I think, here are the possibilities by name- chestnut, bay, black, palomino, buckskin, smoky black, gold champagne, amber champagne, classic champagne, gold creme, amber creme, classic creme.