Here's the official notice about it (via an EVG reader)...
Per the notice from the Department of Design and Construction:
We would like to extend an open invitation to the community to attend our Official Ribbon Cutting Ceremony for The Astor Place/Cooper Square Reconstruction Project and The reinstallation of The Alamo Cube.
The refurbished cube returned on Nov. 1 after nearly two years away during the Astor Place-Cooper Square reconstruction. The rain delay seems like a rather fitting end to a project that which was originally expected to be wrapped up in the fall of 2015.