Legal Question in Disability Law in Illinois

I am very sorry to hear about your wife's diagnosis. But, it sounds like she is resilient and fighting back well.

It is not uncommon for an employer to intentionally or unintentionally discriminate against an employee with cancer. Cancer, even when in remission, is considered a disability under the ADA and your wife is entitled to protection under the Act which could include reasonable accommodation without later reprisal such as denying someone a promotion they were on track for. I had a case a couple of years ago with a cancer survivor who began to receive criticism of her performance (after 18 years with the company) after her new manager learned she was a cancer survivor. She, too, had a promotion in the works. The company denied that her manager was considering her for promotion but we were able to prove, through emails, that she was indeed told she would be getting a promotion. Our case received quite a bit of publicity and we ultimately settled early. There are other issues in that case that I don't think are relevant to your wife's issue.

My advice is that your wife immediately seek experienced counsel. I would be happy to chat with both of you about her situation.