425 Park Avenue is going to international competition. Architects list are Jean Nouvel, Herzog & de Meuron, Foster & Partners, Zaha Hadid, Rem Koolhaas, Richard Meier, Renzo Piano. Its like asking a new sofa design to Marc, Japser, Mario, Citterio and Naoto.  I am kind hoping unknown underdog to be chosen or Zaha.
http://artinfo.com/news/story/801187/zaha-hadid-for-park-avenue-she-and-10-starchitects-compete-to-design-750-million-skyscraper