I believe that the answer would be no, since she had left the AF before her death and not retiring.
People need to realize one reason for that nom, it is kind of a perk for serving. Many applicants, such as our own went to numerous middle and high schools, thus, it is very difficult to compete for a nom, when you move one school in June and arrive to a new one in August and football season has begun, thus your ECs will be weak, for that yr. Or you leave one school that you were the brilliant one, but the school was less rigorous to arrive to a new one that is nationally ranked and you are behind the eight ball academically.
The Presidential does not exist for everyone. The one thing we all say is have a back up plan, for you besides the ROTC scholarship, check into the GI bill, because you may qualify for college money from there since she was in the service.