Close to 2 million sq-ft can be built. At a minimum, this will be over 300m if they decide to utilize the potential. If they can offer competitive rates ($/sq-ft) to compete with Midtown rentals, its a good proposition. The rental market is hot, and DT is booming. Has added over 80,000+ residents since 9/11.
The affordable units component helps too. Those units are like winning the lottery if you get one.