Keep in mind Blonde might not be able to afford a move.
And,If I recall The Nederlander housed mostley plays and not that many big musicals until Rent. And from what I have read the back wall that you see in Rent really is the back wall of the theatre and because of the lack of set in Rent you get a good view of the wings if your sitting in the side of the orchestra and to me at leasat they look pretty small.
I guess In The Heights COULD fit in the Nederlander but now that they won best musical and sales are picking up I doubt the nederlanders would force them to move considering that when a show's tickets sell well the owners of the theare profit off of it as well. I also don't think that if In The Hights can't afford the move that the Nederlanders wouldn't force them to move if they couldn't considering that the Nederlanders would profit from them being at either the Rodgers or The Nederlander.
"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