As much as I love this show, I think that a Broadway revival would not be able to sustain itself. It's a very quiet musical, not much dancing, not much spectacle.
It is the type of musical that Roundabout should do, but I don't like Roundabout shows so I don't recommend it.
I've always wondered how London is able to run musicals like this for so many years. For example, Blood Brothers has run for over a decade and it is the same type of quiet musical as Shenandoah.
If anyone ever tells you that you put too much Parmesan cheese on your pasta, stop talking to them. You don't need that kind of negativity in your life.