-I do not think so.
should we go to this interview or not?
-Yes.
What are other alternatives if she does loss her status.
-If her I-485 is denied, you can sponsor her to file I-130 and I-485 concurrently using Family Base category. Because you are U.S. citizen, her priority date is current. After filing I-485, she will be legally present in U.S. and work using EAD if she wants.