I saw Evan Hansen this past Saturday night, and it's a terrific show. But in terms of financial success, it will never compare to Hamilton, as others have said, which is a once in a decade or so story. What I THINK the talk show host MAY have meant is that it might turn out to be comparable to Hamilton in terms of being a successful transfer from an off Broadway house to a Broadway theater. So the track is the same.
I agree with those who compare it to Fun Home, which to me is a better comparison that N2N.
Suggestion: I followed my gut regarding Hamilton based on its reviews at the Public and what I read on the boards, and bought tickets to see it on Broadway as soon as tickets went on sale, and was I glad I did for obvious reasons. Had no trouble getting four first row mezzanine seats to see it a few months after it opened for $179/per. So, I wouldn't hesitate to buy tickets to see DEH early, before it opens and the reviews come out, which we already know will likely be raves. I assume it will go into a small house, and demand will be high.
CZJ at opening night party for A Little Night Music, Dec 13, 2009.