The still-stunning Lynda Carter, who played Diana in the Wonder Woman TV seires from 1975 to 1979, has been speaking with the new show's creator, David E. Kelley.
'I've talked to David E. Kelley, who's a brilliant writer, a number of times and we're hoping to plan something,' she said. 'But I cannot reveal.'
An obvious role would be Hippolyta, Diana's mother and queen of Themyscira. The DC Comics wiki writes that Hippolyta also took on the role of Wonder Woman first as the "new Golden Age Wonder Woman" and again as a backup Wonder Woman before she died in the "Our Worlds at War" cycle.
As most sites who broke the news stated Carter is most likely to appear as Diana's mother Queen Hippolyta of Themyscria, but would that be too obvious? We'll have to wait and see!