Oh dear, maybe not what you wanted but obviously what is best for her. My FIL was put in an interim care home, but he liked it so we decided it was best to leave him there. Wasn't our choice, but huge waiting lists at one we liked.
How far is JW care home? As you have little input, I guess there's little info coming your way either. She has isolated herself from family, so not much you can do anyway. You can only hope that she will get decent care in JW home.