Ah Emma, you're attempt at snark is cute and funny. Smash is over, so there is a chance that it could happen. She'd need work. But, I do think that it would be doubtful that she'd return to Wicked.
"If you try to shag my husband while I am still alive, I will shove the art of motorcycle maintenance up your rancid little Cu**. That's a good dear"
Tom Stoppard's Rock N Roll