"I never had theatre producers run after me. Some people want to make more Broadway shows out of movies. But Elliot and I aren't going to do Batman: The Musical." - Julie Taymor 1999
Considering Michael Reidel reported some time ago that the producers were interested in people like Enrique Iglesias, Marc Anthony, and Antonio Banderas to potentially replace Martin, I'd gather they got one of those three if they're even entertaining the idea of keeping the show open past his run in it. I'm most inclined to think it's Iglesias, though I doubt he'd prove to be as strong a draw at the box office as Martin has been.
As far as Eva goes, as much as she's denied being considered in the past, I wouldn't be surprised to see someone like Karen Olivo relishing the chance to play the part on Broadway. I'd think her dance chops would be an issue for this particular production, but she's certainly charismatic enough with a voice that would sing the hell out of the score. Who knows- the chance to go back into rehearsal with two other new leads may be enticing to someone like her who would otherwise be reticent to replace.
Tonya Pinkins: Then we had a "Lot's Wife" last June that was my personal favorite. I'm still trying to get them to let me sing it at some performance where we get to sing an excerpt that's gone.
Tony Kushner: You can sing it at my funeral.
"The sexual energy between the mother and son really concerns me!"-random woman behind me at Next to Normal
"I want to meet him after and bang him!"-random woman who exposed her breasts at Rock of Ages, referring to James Carpinello
Wynbish has the right idea! Mandy Gonzalez would knock it right out of the park. I think she's interested as well. Hopefully they'll have enough sense to cast in this manner, sadly I don't think that they do.
I wouldn't mind Olivo, but her attendance has never been the best and she's never played a role this vocally demanding so I don't know what would happen if she took on Eva.