I don't think Steph will be involved in this project at the national tour level. She was amazing in the role when she performed it in Los Angeles -- as was the entire cast -- ensemble to leads, but the show will need some tightening on the road before Steph will be involved.
She's a big old star now...she needs to take star stuff...perhaps a new Jason Robert Brown show, or even a new Sondheim role would fit her resume best, I think.
"Fundamentalism means never having to say 'I'm wrong.'"
-- unknown