I don't see Michelle Pawk playing LuPone's daughter at all. This show is fairly okay, but I still have no idea how Chita Rivera won the Tony over Bernadette Peters back in the 80s. Either way, I see this more as an Encores! concert or a Roundabout limited engagement with two big (or huge) names in the two major roles.
I'm pretty sure Liza didn't do this much as a favor as she did it because she loved the material, loved Kander & Ebb, wanted to do a role that was very much against her persona, and wanted to work with Chita of course.
"Some people can thrive and bloom living life in a living room, that's perfect for some people of one hundred and five. But I at least gotta try, when I think of all the sights that I gotta see, all the places I gotta play, all the things that I gotta be at"