"Therefore, return the man's wife - as a spokesman he will intercede for you - that your life may be saved. If you do not return her, you can be sure that you and all who are yours will certainly die."
"So now, return the man’s wife so that he may intercede for you, since he is a prophet, that you may live. If you do not return her, you can be sure that you and all who are yours will die."
The NABRE explains why the newer translation is superior:
Prophet: only here is Abraham explicitly called “prophet,” Hebrew nabi (cf.Ps 105:15).
This is also the first time in the OT that a person is called a nabi which makes the NABRE revision all the more important.