I can't believe people said Company. It is essentially a thematic show, and the themes are universal - isolation, marriage, the need to feel loved. I agree that it works best in the social context on the 70s, but the concepts presented in the show are strong enough and relevant enough to carry the show into the modern age.
This post has made me wonder about Sweeney Todd. I doubt anyone would ever call it dated, most likely because the themes are universal and it does not take place in the era in which it was written. How open to interpretation is the show? I know the original production focused heavily on the domination of the working class by industry, but that theme can easily be removed since it was rooted in the direction, not the book or lyrics. The show is mean to take place during the Industrial Revolution. I wonder if it's versatile enough to bring it out of that age.
I know you.
I know you.
I know you.