When I moved quite far away and had to deal with the coming home for Thanksgiving after my parents downsized, I suggested that I could host. I think one thing that made it easier for my mother to agree was suggesting that if she really wanted to cook and host, she could do that at my home, which is nearer to the rest of the family. She ended up coming a few days early, it was basically her Thanksgiving in my house, and the staying a few days later.
If the issue is really about location, you could always invite her to come early, maybe even Saturday and help or lead the preparation to make it a joint hosting rather than her feeling that it's been taken away from her.