Thanks for the links, LRC. The last one was especially useful, particularly this: "In other words, think 2016 more than 2015."
Having had some personal experience with NYC/union construction partnerships, I'd be seriously surprised if the facility opened before next summer (at the earliest). The pix seem to indicate a lot of work yet to be done, and I promise the unions will stretch that out--it's just their nature.
Honestly, I'd be surprised if it were open in time for college teams to plan their 2016 indoor meets there. I think 2017 might be more realistic.
Still, I hope it all works out and that NYC eventually has another great indoor facility!