I can't imagine the powers that be will be concerned about whether Hudgens can sing Nina's songs or not. They'll cut them, change them, lower the keys, write new ones for her, etc. This movie is almost impossible to cast. They'll get whatever Latino pseudo stars they can get their hands on.
I honestly think this will be a big fiasco on screen, especially since they are going for a poppy, Disney-fied tone if they hired Ortega as the director. I think the material could have been much more interesting with some more interesting filmmakers.
Lin starring in this is completely different than the RENT people, especially since he is the writer himself so he can change and adapt the material to suit his abilities/shortcomings. However, he won't sell a single ticket so I do wonder what kind of money they are expecting to make with him as the lead.
"Some people can thrive and bloom living life in a living room, that's perfect for some people of one hundred and five. But I at least gotta try, when I think of all the sights that I gotta see, all the places I gotta play, all the things that I gotta be at"