It is true that Seth isn't as well known as he may seem, at least among older people. When he hosted the Oscars a ton of people had no idea who he was.
Nonetheless, I do think he would be good. And who knows, it might happen. Far stranger things have happened (the studio system lending out is a great example). It's not like any of us actually work for FOX or NBC or have any idea what they will or will not do.
I'm actually excited for this one! GREASE and PETER PAN aren't two of my favorites (especially the watered down GREASE).
Keeping BroadwayWorld Illustrated