She will abandon her application if she departs now without a travel document.

If the case hasn’t been approved, yes in theory this is possible.

Yes you may file for your wife as an LPR.

If still married, then yes you should answer this information.

This is best addressed in private and through consult with an attorney.

If USCIS took fee for the I485, contact them directly to obtain receipt notice and understand if new filing is necessary.

I agree with my colleague that more information is needed to provide assistance.

More information is needed about your case history. Consult with an attorney in private to understand your case.

Yes that should be acceptable but whether approved or not is yet to be seen.

You can file the I130 for each applicant and initiate consular processing. Consult with an attorney for guidance.