"....That her foot is healing and they may have to remove it???????" That's certainly something I would want an answer to, all right!
If she has an infection that's first priority. If she had an infection for several months, well, she's on a six week course of antibiotics, right? Is the infection under control? This could be life threatening. What did they give as the reason they took out the metal in her ankle? Sometimes patients turn out to be allergic to the metal used in such surgeries.
I happen to have some familiarity with these "lisfranc" injuries to the foot/ankle. It's kind of like you thought you had a simple sprained ankle and if it turns out that it is is this kind of injury, it is not something that will heal quickly or can be easily taken care of. From the sound of what you wrote, you began seeing the orthopedic doctors because the assumed " simple sprain" was not getting better in the first place. It's not something that will be easy, the bones have like, changed positions. I know it would've been good if she had healed up right away, but this kind of injury is sort of a pain to treat for all concerned. They may have over-sold you on how much good it would do to have the surgery, or assured you that she'd be as good as new after surgery, but really, this is a sort of major hard to fix problem even if you have the very best of doctoring.
Yes, complete healing is the desired outcome and as soon as possible, since it is so troublesome and expensive for her to be non functioning and mobility impaired. Go to the next meeting with the NP with her and have a list of questions that you want answered thoroughly. Then you'll be better prepared to move forward. Best wishes to you for your wife's complete healing.