"If Jersey Boys, Motown, and Beautiful: The Carole King Musical were all hits, it should be interesting to see how On Your Feet does."
The big difference, of course, is that the Four Seasons, the musicians of the Motown era, and Carole King were artists who were wildly popular all over the country. Their music was beloved by just about everyone during a specific time period.
Gloria Estefan, who I happen to LOVE, certainly doesn't have the same widespread appeal as those other musicians. She has a giant Latin following and she's huge in big cities with lots of diversity, but I really doubt that Sally Sue from Arkansas knows may of Gloria's songs. I think the show could do well, but I don't see it having the instant ticket sales that the other three aforementioned shows had. It's going to need some help.