Doing a song justice in a concert setting is not the same as being perfectly suited for a role. Foster shocked us all with her Reno Sweeney, so I wouldn't say she doesn't have it in her but she's definitely someone I think should wait 10 years.
Donna Murphy has got to play the role. I just think she'd turn in a Rose for the ages. And I'm glad others agree re Krakowski, she's the most unlike the people who tend to be suggested in these threads but her Rose would be sexy, delusional, hilarious, and indomitable, all qualities that I'd love to see someone bring to the table in a revival of the show. She also is a Broadway baby, so I'd love to see her draw on that experience in a juicy role like this one.
"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"