It's a famous musical. Obviously it's not hot new IP or anything (though most of what's hot at the box office right now is IP dating from about the same period as the musical). Ultimately all you can do is try to make a great product.
I'm not sure a run like that is really possible in the current pandemic box office, because so far it's been brutally difficult for anything other than action/horror to do big numbers. That was a trend that predated the pandemic, but it's only increased as older audiences have been much slower to return (in the nightmare scenario, of course, they don't,