system
A chat on subreddit /r/NoStupidQuestions
human
I can't find any evidence that her NDA was set to expire. I don't believe NDA's expire in general.
gpt
all the ones I signed were for a specific period of time or until a specific thing was outed. But those were for working in exec recruitment and the video game industry. I don't know about what hers was, just know that there are plenty of NDAs with expiries.