I'm inclined to agree. The market has absorbed a lot of tenants seeking 600k - 1 mil sqft of commercial, class A. Two MW in itself is massive, and would require such a commitment. I can see for the time being, smaller towers picking up the residual demand, but in the meantime, larger, higher volume towers such as this will be delayed until the market is stronger (with tenants seeking 700k sq ft or more in one swoosh for example).
I think for 2017-2020, Rentals, and condos will be the bulk of the investment and the pipeline will reflect that. This boom cycle essentially built a majority of the space needed for the next 5 years, and I think what we will see are smaller developments catering to mid sized companies. But nothing on the level for 2012-2016 when it comes to office.
There are still major tenants seeking space, but the competition has kinda limited the odds for 2 MW. Likewise for 2 WTC,