I think the best years are already behind her. She was at the top of the pop-cultural business, the "next Madonna", as if. I understand that she doesn't need to get fit again, sell lots of records and be the best again. She should focus on being a good mother and I don't really get the whole hype that the media like to cause from time to time. Now that she's not in the spotlight anymore, she doesn't need as much attention from the paparazzis as she used to. Too much gossip, too little reliable info.
Get well, Britney. Be a great mother and don't make any records again