I think breeding that hen to a Buff Brahma rooster will give chicks with some pattern of black and gold (same colors as Buff Brahma, but may be arranged differently), and some chicks with a pattern of black and white (can't say what pattern-- might be like the Brahma pattern or like the hen's...
I think it may take a few days, but unfortunately, I don't have enough frizzle experience to tell for sure.
@JacinLarkwell do you know how early you can tell which chicks are frizzled?
Unfortunately, "grey" chickens can have quite a few different genes, so I can't really predict chick colors from that. Some chicks might be the same color as her, but there are many more options as well.
If you are able to take a picture later and post it, I can probably give better predictions...
Half of the chicks should have frizzled feathers, have should have smooth feathers.
All of the chicks should have some kind of a pea comb (might be small and tidy like the Brahma's, might be bigger and blobby looking.)
All chicks should have some feathers on their feet.
Assuming the Easter...