I would love to see him take a stab at Bobby (whatever happened to that gay Company? Did anything come of that reading?) or maybe Guido Contini. I would see him do Floyd Collins, as well. In addition to the previously mentioned roles, of course.
Producers could hit a goldmine if they found a vehicle for him and Lady Gaga to do together. I'm not really a fan of Gaga or what she did at the Oscars, but people went ga ga over it.
In all seriousness, I'd love to see him originate a role in a new musical. I'd love to see him in a Next to Normal or Rent-type show directed by Michael Mayer.
I can't see him singing that part as well as it deserves to be sung. Claybourne Elder dragged the role down in the recent DC production because of his sub-par singing.
Stone in the long overdue revival of "City of Angels" and Matthew Morrison as Stine. And then after six months, they can trade roles.
If anyone ever tells you that you put too much Parmesan cheese on your pasta, stop talking to them. You don't need that kind of negativity in your life.