A recent decree (August 30, 2019) eliminated the distinction of whether the ancestor whose citizenship was stripped was male or female. Many people who weren’t eligible before that date are now eligible. It was a terrible injustice that descendants of women affected by Nazi-era racial laws would have less claim than descendants of men. I’m currently applying.
Here is a link to the press release for the decree:
https://uk.diplo.de/blob/2244512/012493c208923714e587704809e4b8ea/citizenship-decree--data.pdf
It's also described here:
https://www.germany.info/us-en/service/03-Citizenship/restoration-of-german-citizenship/925120