IMO, the only way a single case will be overturned is via a majority of votes; it is almost certain those votes will not occur until, as PGR88 urges, the view changes.
Unfortunately, it is also almost certain "the view" will not change until new justices are brought on, and that can be a slow process.
J. Kavanaugh was the tipping point. Conservatives now enjoy a slim majority. When Justice RBG goes to the big reeducation camp in the sky, there will be a slightly fatter majority. With any luck Souter and Roberts will be getting longer in the tooth soon, too. And so on and so forth. All Trump needs to do is win one more POTUS election, and help the Republicans win one more mid-term after that, and SCOTUS will be that much better.